--- product_id: 401728789 title: "Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription" brand: "prox devices" price: "4051779₫" currency: VND in_stock: true reviews_count: 12 category: "Prox Devices" url: https://www.desertcart.vn/products/401728789-prox-prd-phone-separation-alert-device-stop-forgetting-or-leaving store_origin: VN region: Vietnam --- # Bluetooth range 50-150ft 1-year replaceable battery No app, no subscription Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription **Brand:** prox devices **Price:** 4051779₫ **Availability:** ✅ In Stock ## Summary > 📱 Stay Connected, Stay Ahead — Never Forget Your Phone Again! ## Quick Answers - **What is this?** Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription by prox devices - **How much does it cost?** 4051779₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/401728789-prox-prd-phone-separation-alert-device-stop-forgetting-or-leaving) ## Best For - prox devices enthusiasts ## Why This Product - Trusted prox devices brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Power:** Preinstalled CR2032 battery lasts up to 1 year, with low-battery alerts so you’re never caught off guard. - • **Privacy-First Design:** No apps, no tracking, no data collection—100% privacy with zero battery drain on your phone. - • **Effortless Setup & Use:** Pair and go in 30 seconds; no complicated settings or adjustments needed—ideal for the tech-savvy and non-tech alike. - • **Multi-Device Compatible:** Works seamlessly with iPhones, Samsung, Google Pixel, and tablets—your wireless leash for all essential devices. - • **Never Leave Your Phone Behind:** Patented Advanced Alert Technology notifies you before you stray 50-150ft away from your phone—perfect for busy professionals on the move. ## Overview The Prox PRD is a sleek, subscription-free Bluetooth alert device that notifies you when you move 50 to 150 feet away from your smartphone or tablet. Designed with privacy in mind, it requires no app or data sharing, ensuring zero battery drain on your phone. With a 1-year replaceable battery and effortless 30-second setup, it’s the ultimate peace-of-mind gadget for busy professionals who refuse to be caught without their most essential tech. ## Description Product description Eliminate the Frustration & Anxiety of Forgetting or Losing Your Phone Don’t let a simple mistake cost you your data, memories, or connection to the world. With the right protection, you'll have peace of mind knowing your phone is always secure, easy to find, and ready when you need it most. TECHNICAL SPECIFICATIONS Review: THIS DEVICE IS CURRENTLY THE MOST RELIABLE IN PREVENTING LOSS OF A CELLPHONE WHILE TRAVELING - JM For the fact I previously owned a retail communications business some years back, I was asked at times to give technical reviews on certain products that were new to the marketplace. A previous commercial client asked me to give him my personal opinion as to the reliability of this newly marketed device that came out late last year and is produced by the company, Prox Devices, Inc. The device is called the Prox PRD™ and is a “Notify When Left Behind” or “Never Leave Behind” type device that can be identified by the newly given acronyms, “NLB” or “NWLB.” After ordering this product for myself back in December of ‘21, I have to say it may be the only electronic device I’ve ever purchased that has performed as well as its developer claimed it would. Having used it consistently since my purchase, I felt compelled to post a review to include much of what I shared with the previous client. After evaluating the Prox PRD™ over these last couple of months, I give the product a 5-Star rating. Prox Devices Inc. that markets the Prox PRD™, is based in San Jose, CA. The product has just one simple function, which is to help keep a person from losing their cellphone, and it can also prevent the loss of other Bluetooth enabled devices, such as tablets and laptops. Although its main purpose is to prevent these types of losses through one’s own carelessness, it still works well as an antitheft deterrent when placed in “travel mode,” as this will alert one to a potential theft or loss, regardless of whether the cellphone is moving away from the Prox PRD, or the PRD is moving away from the cellphone. So, the travel setting can easily prevent someone from skillfully picking up your cellphone and just casually walking away without your noticing, as you’ll immediately be alerted as soon as the PRD selected distance is met. This is particularly useful when you have set your PRD to its lowest setting of 10-15 feet. Distances will still vary depending on your surrounding structures, but the individual distance settings are remarkably accurate within what the company claims are the measured thresholds for each of the 5-alert settings. One of the PRD’s unique and most popular features is its ability to a function as a shutter button for your cellphone camera. This is convenient in making a selfie for yourself or when with a group, so you are not attempting to hold the cellphone and press the shutter button at the same time, which often ends up with one dropping their cellphone onto the ground, potentially severely damaging it if it lands on hard surfaces such as concrete and or sometimes deep water! None of these are an optimal choice. In looking at the other side of this for concerns in preventing annoying and unnecessary separation alerts, there’s also a “home mode” which helps prevent this from happening, since once you are in a safe location, such as your home, hotel room, or other familiar place, you do not want to be concerned with having your phone continually paired and connected to your PRD device. As a real-world setting, suppose you set your PRD down on a bedroom nightstand before going to bed, but then you get up in the middle of the night with your phone in hand to retrieve a charger in the kitchen. You may be well beyond the set separation alert distance but as long as your PRD remains “stationary” on the nightstand there will be no alert, which could certainly annoy or awaken your sleeping spouse. In my 2-month period of testing, I experienced only (3) false alerts. This is impressive in comparison to the scourge of bad reviews that go along with many of the electronic devices that fail to function properly and routinely sound false alerts due to their signals momentarily disconnecting from the devices. Some of the testing I did was within a few heavy RF use areas, and the PRD passed without incident while using it inside an international airport, several shopping malls and concert venues. So having no false alerts in those crowded RF areas show that the filter arrangement being implemented in the PRD, is clearly well engineered. First glance at the comprehensive user manual may appear extensive at first and this may put off a general type of consumer that may think the device is overly complex. However, it is truly not complicated, and the explanations and instructions are not to be feared, and one will appreciate and understand all the features after reading it all the way through. The level of thoroughness that is observed in the operations manual, aligns with its feature testing, and this led me to be much less concerned in the risk of bringing a PRD device into a quiet room format, such as a board meeting or church function, where the incidence of a signal disruption that creates a false alert, would be as embarrassing as having your cellphone ring aloud under those same circumstances. One of the best features of the Prox PRD is actually what it doesn’t have, which is the need for an App. This is a nice plus since there’s no concern of a company tracking you or your devices, and you can appreciate the fact your cellphone is not connecting or sharing any data with others, as it only connects to the PRD like any other Bluetooth device, such as a wireless speaker or headphones. Therefore, this is currently the best option in the present market to keep one from losing their phones or other Bluetooth devices, whether travelling locally in daily routines, or in faraway travels where the threat of leaving your laptop on a plane or cellphone at a foreign airport lounge, could certainly be disastrous. The PRD, as it comes right out of the box, is easy to set up and you can choose to use all the features it offers or just leave it on the average default setting as it is received. This is great to know, so that if one of your friends or family, who may be non-tech savvy individuals, but still needs one of these to help them from forgetting their phone, then as soon as the PRD is connected to their smartphone’s Bluetooth, it will still perform its task in keeping their phone, laptop, or tablet safe and so they will stay protected from the time they leave their home, stores, restaurants, or any other places they may visit along the way. I think it’s good to know that from a U.S. resident perspective, Prox Devices Inc. who’s developed the Prox PRD™, and sells it through desertcart, is a U.S. company and its components and programming are all done at its facilities in Silicon Valley. Therefore, any customer service needed in replacing a device or dealing with any problems that is outside of desertcart’s fulfillment capabilities, it can certainly be remedied more easily than having to solve the problems through an overseas customer service 1-800 line. There is a Q-code printed on the device that will take you back to the company’s operations manual in case you ever need help again with some of the features that are not already printed on the device itself. Overall, I think it is a great device for its simple function, and if used correctly, can and will prevent the tremendous angst and frustration that losing your cellphone causes, as well as the total monetary loss one suffers, whether by accident or theft! Review: Phone separation issues - When you leave your phone behind, you’ve lost everything and this unit keeps me alert as to the distance of where my phone actually is. It’s been invaluable on several occasions. It’s easier to set up. It’s loud and it’s reliable. ## Features - ☑️ STOP FORGETTING YOUR PHONE - GET A RELIABLE PHONE SEPARATION ALERT BEFORE YOU LEAVE YOUR PHONE BEHIND (NOT A TRACKER): Using patented Advanced Alert Technology, alerting only when the Prox PRD is moving, the PRD will alert you when leaving proximity of your phone; typically 50ft to 150ft away. Alert distance range can vary greatly and may be shorter (w/obstructions) or farther when outdoors. The PRD does not alert at very short distances such as 10 feet. (Phone not included.) - ☑️ NO SUBSCRIPTION - NO DATA COLLECTED OR SOLD - NO APP: The only device with this patented technology. No Sign-Up, No Registration, No Password, and No Tracking "Location Services" used to invade your privacy and drain your phone's battery. Thus, 100% Privacy with this anti-phone loss phone reminder device giving you an alarm when you leave your phone behind. No need to track, find, or locate your phone if it is not lost. The PRD does not ping the phone. - ☑️ AVOID THE FRUSTRATION & ANXIETY OF A FORGOTTEN OR LOST PHONE: The Prox PRD beeps before leaving a phone behind. Have you ever forgot your phone on the charger when leaving the house? Stop forgetting or leaving your phone behind. Don't forget your phone -- make sure you have your phone when you need it the most instead of having to find your phone after it's too late. - ☑️ SIMPLE TO USE - NO ADJUSTMENT NEEDED - UP AND RUNNING IN 30 SECONDS: Alerts when leaving your phone behind without intruding on your life. Simply pair it with your phone, put it on a keychain or handbag, and you will receive a reliable alert when the PRD leaves proximity of your phone. Protect yourself from losing (even temporarily) one of the most integral technologies in your life – your phone. - ☑️ 1-YEAR BATTERY LIFE (TYPICAL) – EASILY REPLACEABLE CR2032 BATTERY IS PREINSTALLED: Designed to be kept on 24/7. When the battery is low, the PRD will chirp every two seconds upon movement of the device until it is turned off. It cannot be turned back on until the battery is replaced. - ​☑️ COMPATIBLE ONLY WITH SMART PHONES and TABLETS: Apple iPhones (iOS); Samsung & Google Pixel (Android) | Stop losing your phone | No need to find your phone | Great alternative to needing a cell phone lanyard | Get a WIRELESS LEASH for your phone - ​☑️ INSTRUCTIONS ARE EASILY ACCESSIBLE | QUESTIONS OR NEED ASSISTANCE?... don't hesitate to contact us. Prox Devices support information is in every box and the User Manual and Trouble Shooting Guide are provided in this listing with links below. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09FYL6P9J | | Are Batteries Included | Yes | | Battery Average Life | 1 years | | Best Sellers Rank | #14,122 in Electronics ( See Top 100 in Electronics ) #174 in Item Finders | | Brand | Prox Devices | | Compatible Devices | Smartphone, Tablet | | Connectivity Technology | Bluetooth | | Control Method | Touch | | Customer Reviews | 4.3 out of 5 stars 511 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Aluminum, Polycarbonate (PC) | | Item Dimensions L x W x Thickness | 1.77"L x 1.77"W x 0.26"Th | | Item Weight | 1 Ounces | | Manufacturer | Prox Devices, Inc. | | Material | Acrylonitrile Butadiene Styrene (ABS) , Aluminum , Polycarbonate (PC) | | Mfr Part Number | PRDF6V100C00 | | Model Number | F6 | | Number of Batteries | 1 Lithium Metal batteries required. (included) | | Product Dimensions | 1.77"L x 1.77"W x 0.26"Th | | Range | 150 feet | | Smart Home Compatibility | Smart Home Compatible | | UPC | 619185867171 | | Warranty Description | 1 Year Limited Warranty | ## Product Details - **Are Batteries Included:** Yes - **Brand:** Prox Devices - **Material:** Acrylonitrile Butadiene Styrene (ABS), Aluminum, Polycarbonate (PC) - **Number of Batteries:** 1 Lithium Metal batteries required. (included) - **Product Dimensions:** 1.77"L x 1.77"W x 0.26"Th ## Images ![Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription - Image 1](https://m.media-amazon.com/images/I/61E3GPEDCVL.jpg) ![Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription - Image 2](https://m.media-amazon.com/images/I/81bECanCqqL.jpg) ![Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription - Image 3](https://m.media-amazon.com/images/I/71gZx0Fv6KL.jpg) ![Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription - Image 4](https://m.media-amazon.com/images/I/610svxnEe9L.jpg) ![Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription - Image 5](https://m.media-amazon.com/images/I/71Nd7doSa5L.jpg) ## Questions & Answers **Q: How will I know when to replace the battery?** A: When the battery reaches a critically low level, you will hear a low battery alert chirp every two (2) seconds. This will only happen when the Prox PRD is moved so don’t worry; no middle of the night low battery alerts. To stop the chirping, you will need to turn the PRD off by pressing and holding the button until you hear it power off. Once turned off, the PRD cannot be turned back on until the battery is replaced. Please note that when the battery is replaced, the PRD’s default settings will be restored. **Q: How is travel mode different from the default home mode?** A: There are two basic operating modes: HOME mode (the default) where the PRD alerts only when it is moving away from the phone and TRAVEL mode where the PRD alerts when moving away from the phone OR the phone is moving away from the PRD. Travel mode works well in busy environments (e.g., airport or restaurant) and someone accidentally (or intentionally) picks up your phone and walks away. To adjust this mode, press the button five (5) times, then hold the button down until you hear 1 beep (HOME) or 2 beeps (TRAVEL) indicating the current setting, then single-click to toggle. **Q: I am experiencing further alert distances outside. Is this normal?** A: Alert distances can be further if both the PRD and phone are outside in an open space and there are no obstructions between the two — e.g., buildings, walls, doors, trees, or people. The alert distances can also be further if the PRD is being held in your open hand versus it being placed in your pocket or handbag. **Q: do you get a notification on your phone if you leave the device home in your wallet?** A: You will not get a notification on the phone if you leave the Prox PRD behind. The Prox PRD is designed as a Phone Reminder Device and it is based on the principle of the PRD being on the move and notifying you (through the audible alert) that you have left your phone behind if you exit proximity of the phone (~50 to 150 feet) and are about to drive away without it. Further, we don't recommend carrying the PRD in a wallet because the button may be accidentally activated. ## Customer Reviews ### ⭐⭐⭐⭐⭐ THIS DEVICE IS CURRENTLY THE MOST RELIABLE IN PREVENTING LOSS OF A CELLPHONE WHILE TRAVELING *by W***O on February 19, 2022* JM For the fact I previously owned a retail communications business some years back, I was asked at times to give technical reviews on certain products that were new to the marketplace. A previous commercial client asked me to give him my personal opinion as to the reliability of this newly marketed device that came out late last year and is produced by the company, Prox Devices, Inc. The device is called the Prox PRD™ and is a “Notify When Left Behind” or “Never Leave Behind” type device that can be identified by the newly given acronyms, “NLB” or “NWLB.” After ordering this product for myself back in December of ‘21, I have to say it may be the only electronic device I’ve ever purchased that has performed as well as its developer claimed it would. Having used it consistently since my purchase, I felt compelled to post a review to include much of what I shared with the previous client. After evaluating the Prox PRD™ over these last couple of months, I give the product a 5-Star rating. Prox Devices Inc. that markets the Prox PRD™, is based in San Jose, CA. The product has just one simple function, which is to help keep a person from losing their cellphone, and it can also prevent the loss of other Bluetooth enabled devices, such as tablets and laptops. Although its main purpose is to prevent these types of losses through one’s own carelessness, it still works well as an antitheft deterrent when placed in “travel mode,” as this will alert one to a potential theft or loss, regardless of whether the cellphone is moving away from the Prox PRD, or the PRD is moving away from the cellphone. So, the travel setting can easily prevent someone from skillfully picking up your cellphone and just casually walking away without your noticing, as you’ll immediately be alerted as soon as the PRD selected distance is met. This is particularly useful when you have set your PRD to its lowest setting of 10-15 feet. Distances will still vary depending on your surrounding structures, but the individual distance settings are remarkably accurate within what the company claims are the measured thresholds for each of the 5-alert settings. One of the PRD’s unique and most popular features is its ability to a function as a shutter button for your cellphone camera. This is convenient in making a selfie for yourself or when with a group, so you are not attempting to hold the cellphone and press the shutter button at the same time, which often ends up with one dropping their cellphone onto the ground, potentially severely damaging it if it lands on hard surfaces such as concrete and or sometimes deep water! None of these are an optimal choice. In looking at the other side of this for concerns in preventing annoying and unnecessary separation alerts, there’s also a “home mode” which helps prevent this from happening, since once you are in a safe location, such as your home, hotel room, or other familiar place, you do not want to be concerned with having your phone continually paired and connected to your PRD device. As a real-world setting, suppose you set your PRD down on a bedroom nightstand before going to bed, but then you get up in the middle of the night with your phone in hand to retrieve a charger in the kitchen. You may be well beyond the set separation alert distance but as long as your PRD remains “stationary” on the nightstand there will be no alert, which could certainly annoy or awaken your sleeping spouse. In my 2-month period of testing, I experienced only (3) false alerts. This is impressive in comparison to the scourge of bad reviews that go along with many of the electronic devices that fail to function properly and routinely sound false alerts due to their signals momentarily disconnecting from the devices. Some of the testing I did was within a few heavy RF use areas, and the PRD passed without incident while using it inside an international airport, several shopping malls and concert venues. So having no false alerts in those crowded RF areas show that the filter arrangement being implemented in the PRD, is clearly well engineered. First glance at the comprehensive user manual may appear extensive at first and this may put off a general type of consumer that may think the device is overly complex. However, it is truly not complicated, and the explanations and instructions are not to be feared, and one will appreciate and understand all the features after reading it all the way through. The level of thoroughness that is observed in the operations manual, aligns with its feature testing, and this led me to be much less concerned in the risk of bringing a PRD device into a quiet room format, such as a board meeting or church function, where the incidence of a signal disruption that creates a false alert, would be as embarrassing as having your cellphone ring aloud under those same circumstances. One of the best features of the Prox PRD is actually what it doesn’t have, which is the need for an App. This is a nice plus since there’s no concern of a company tracking you or your devices, and you can appreciate the fact your cellphone is not connecting or sharing any data with others, as it only connects to the PRD like any other Bluetooth device, such as a wireless speaker or headphones. Therefore, this is currently the best option in the present market to keep one from losing their phones or other Bluetooth devices, whether travelling locally in daily routines, or in faraway travels where the threat of leaving your laptop on a plane or cellphone at a foreign airport lounge, could certainly be disastrous. The PRD, as it comes right out of the box, is easy to set up and you can choose to use all the features it offers or just leave it on the average default setting as it is received. This is great to know, so that if one of your friends or family, who may be non-tech savvy individuals, but still needs one of these to help them from forgetting their phone, then as soon as the PRD is connected to their smartphone’s Bluetooth, it will still perform its task in keeping their phone, laptop, or tablet safe and so they will stay protected from the time they leave their home, stores, restaurants, or any other places they may visit along the way. I think it’s good to know that from a U.S. resident perspective, Prox Devices Inc. who’s developed the Prox PRD™, and sells it through Amazon, is a U.S. company and its components and programming are all done at its facilities in Silicon Valley. Therefore, any customer service needed in replacing a device or dealing with any problems that is outside of Amazon’s fulfillment capabilities, it can certainly be remedied more easily than having to solve the problems through an overseas customer service 1-800 line. There is a Q-code printed on the device that will take you back to the company’s operations manual in case you ever need help again with some of the features that are not already printed on the device itself. Overall, I think it is a great device for its simple function, and if used correctly, can and will prevent the tremendous angst and frustration that losing your cellphone causes, as well as the total monetary loss one suffers, whether by accident or theft! ### ⭐⭐⭐⭐⭐ Phone separation issues *by R***Z on May 10, 2026* When you leave your phone behind, you’ve lost everything and this unit keeps me alert as to the distance of where my phone actually is. It’s been invaluable on several occasions. It’s easier to set up. It’s loud and it’s reliable. ### ⭐⭐⭐⭐⭐ Great product *by U***A on May 9, 2026* This is the perfect product for anyone with a mobile phone. I wish I was the one who invented it. So easy to set up and use in a matter of minutes after opening. No apps required no info going anywhere. Just an easy connection to your phone just in case you forget it and get to far away. Absolutely love this product. ## Frequently Bought Together - Prox PRD - Phone Separation Alert Device | Stop Forgetting or Leaving Phone Behind at Home, Work, Restaurant, or Car | Proximity Alert Notification Approx 50-150ft | Stay Connected | No Subscription - Tile by Life360 Mate (2024) Bluetooth Tracker, Keys Finder and Item Locator for Keys, Bags and More. Phone Finder. Both iOS and Android Compatible. 1-Pack (Black) - Tile by Life360 Slim (2024) - Wallet Finder, Bluetooth Tracker and Item Locator for Luggage Tags, Passports and More. Both iOS and Android Compatible. Phone Finder. 1-Pack (Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/401728789-prox-prd-phone-separation-alert-device-stop-forgetting-or-leaving](https://www.desertcart.vn/products/401728789-prox-prd-phone-separation-alert-device-stop-forgetting-or-leaving) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-03*