---
product_id: 645526472
title: "Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight"
brand: "avantree"
price: "3077149₫"
currency: VND
in_stock: true
reviews_count: 6
category: "Avantree"
url: https://www.desertcart.vn/products/645526472-avantree-relay-premium-airplane-bluetooth-adapter-with-advanced-qualcomm-chipset
store_origin: VN
region: Vietnam
---

# Bluetooth 5.3 & aptX Adaptive Dual headphone support 20+ hrs battery life Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight

**Brand:** avantree
**Price:** 3077149₫
**Availability:** ✅ In Stock

## Summary

> ✈️ Elevate your travel soundscape—wireless freedom at 30,000 feet!

## Quick Answers

- **What is this?** Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight by avantree
- **How much does it cost?** 3077149₫ 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/645526472-avantree-relay-premium-airplane-bluetooth-adapter-with-advanced-qualcomm-chipset)

## Best For

- avantree enthusiasts

## Why This Product

- Trusted avantree brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Epic 20+ Hour Battery Life:** Power through long-haul flights and workouts without scrambling for a charger—LED indicators keep you in the know.
- • **Next-Gen Qualcomm Audio Tech:** Experience crystal-clear, low-latency sound with Bluetooth 5.3 and aptX Adaptive for premium audio fidelity.
- • **Seamless Wireless Travel Audio:** Stream in-flight entertainment wirelessly from any 3.5mm jack—ditch the wires, keep the vibe.
- • **Dual Bluetooth Headphone Pairing:** Share your favorite movies or playlists with a travel buddy—two headphones, one device, zero hassle.
- • **Universal Compatibility with Top Brands:** Works flawlessly with AirPods, Bose, Sony, Beats, and more—your trusted headphones just got an upgrade.

## Overview

The Avantree Relay is a premium Bluetooth 5.3 audio transmitter featuring Qualcomm aptX Adaptive technology, enabling wireless streaming from any 3.5mm audio source to two Bluetooth headphones simultaneously. Designed for travelers and audiophiles, it offers over 20 hours of battery life, intuitive controls, and broad compatibility with leading headphone brands like AirPods, Bose, and Sony, making it the ultimate companion for uninterrupted, high-quality in-flight entertainment.

## Description

Avantree Relay - Bluetooth 5.3 Adapter for Airplanes with Qualcomm apt-X Low Latency Adaptive Support. Wireless Audio Transmitter for 2 Headphones or AirPods. Perfect for in-Flight Entertainment

Review: No problem with connection. Works as advertised - Bought it for a recent long airplane ride from Dubai to Canada. Was Flying on ITA Airways. Didn't need to use because ITA allows direct bluetooth connection, but I tested it on my laptop and it worked as stated. Only problem is trying to remember the directions to connect/pair since I don't use it very often.
Review: Why did I buy this product? Because I make international flights on a regular basis. For travel, noise canceling headphones are a must-have, but most are now bluetooth. Unfortunately, most cattle class seats have infotainment systems that only provide mini-jack outputs. Enter this device as the perfect solution! At least in my opinion. This device allows me to plug-in to the output jack on an aircraft without the inconvenience of wires. It has several domestic uses, specifically provided a bluetooth interface to older audio equipment, PC's that don't have bluetooth, and (some) tablets. Does it work? Yes, no reservations. Fully charged, the battery was only 50% drained at the end of a 10 hour flight to London from Phoenix, AZ. I used this device in conjunction with my iPad mini, the aircraft infotainment system and even my PC at home. Binding was fast and effortless. Recommend you read the instructions because although binding and unbinding is easy (and works) the unit itself has a minimum of controls and you need to know what you're doing! I really can't speak to quality or range, but at least up to around ten to fifteen feet it was working fine, and sound quality was excellent without drop-out or interference. Can I listen to music while the unit is attached to a charger? Yes you can. This was a worry for me, especially since I forgot to recharge before the return trip. So I attached to a USB-C power bank and absolutely no problem, throughout charging, the unit worked fine. BTW, many airlines seem to be banning the use of power banks on or onto their aircraft - just another nuisance to check on before you fly! Do I know how much power is left? Yes, there are 4 white LED's which tell you how much charge you've got on the device. The top-most illuminated LED flashes until the next level is reached or the unit is fully charged. Finally, can two people listen to the same audio? Yes, my wife and I watched a video on the plane, with both of us wearing Bose NC headphones in bluetooth mode. The unit provides two, simultaneous links so for me that was the final box ticked. Some widgets are hard to use, but this one is well thought out and easy.

## Features

- 【WIRELESS AUDIO FOR TRAVEL】Stream audio from airplane in-flight entertainment systems or gym machines to your Bluetooth headphones via the 3.5mm jack—perfect for flights and workouts.
- 【WORKS WITH AIRPODS & TOP BRANDS】Compatible with AirPods, Sony, Bose, Beats, and most Bluetooth headphones. Not compatible with phones, speakers, car stereos, or hearing aids.
- 【DUAL HEADPHONE SHARING】Connect two Bluetooth headphones at once and enjoy movies or music together. Pairing stability may vary with certain models.
- 【ADVANCED APTX TECH & BLUETOOTH 5.3】Built with Qualcomm aptX Adaptive and Bluetooth 5.3 for stable, high-quality audio; backed by Avantree’s 20+ years of wireless audio experience.
- 【INTUITIVE CONTROLS & 20H BATTERY】Up to 20 hours of playtime with LED indicators for power and pairing; onboard buttons make volume control and dual headphone pairing easy.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3QQ4X6F |
| Best Sellers Rank | #7,803 in Electronics ( See Top 100 in Electronics ) #92 in Headphone Adapters |
| Item model number | BTTC-218 |
| Manufacturer | Avantree |
| Package Dimensions | 15 x 13.6 x 1.2 cm; 80 g |

## Product Details

- **Brand:** Avantree
- **Colour:** Black
- **Compatible devices:** Bluetooth headphones or earbuds
- **Data link protocol:** Bluetooth
- **Hardware interface:** Bluetooth

## Images

![Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight - Image 1](https://m.media-amazon.com/images/I/61JzVjuS-SL.jpg)
![Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight - Image 2](https://m.media-amazon.com/images/I/71UokTf3HmL.jpg)
![Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight - Image 3](https://m.media-amazon.com/images/I/71CerQEq2IL.jpg)
![Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight - Image 4](https://m.media-amazon.com/images/I/71gG-Qxf5TL.jpg)
![Avantree Relay - Premium Airplane Bluetooth Adapter with Advanced Qualcomm Chipset, 2 Headphones Support, 25hrs Play Time, aptX Adaptive & HD Audio Transmitter for Airpods, Bose & Travel Flight - Image 5](https://m.media-amazon.com/images/I/61U788H2r1L.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: Does it work with bone conductors?**
A: compare all specs before buying

**Q: It keeps asking me for the code and i can't find it. Is there a genetic code?**
A: There is no code needed for pairing. May i know which device you are tryting to pair with the Relay please?

**Q: Can this be connected to Hearing aids?**
A: Yes

**Q: When used with two headsets, can each set of ear buds control volume independent of the other?**
A: If you want to adjust the volume independently, please adjust the volume on the headphones.

## Customer Reviews

### ⭐⭐⭐⭐ No problem with connection. Works as advertised
*by C***R on 19 September 2025*

Bought it for a recent long airplane ride from Dubai to Canada. Was Flying on ITA Airways. Didn't need to use because ITA allows direct bluetooth connection, but I tested it on my laptop and it worked as stated. Only problem is trying to remember the directions to connect/pair since I don't use it very often.

### ⭐⭐⭐⭐⭐ Review
*by A***L on 12 November 2025*

Why did I buy this product? Because I make international flights on a regular basis. For travel, noise canceling headphones are a must-have, but most are now bluetooth. Unfortunately, most cattle class seats have infotainment systems that only provide mini-jack outputs. Enter this device as the perfect solution! At least in my opinion. This device allows me to plug-in to the output jack on an aircraft without the inconvenience of wires. It has several domestic uses, specifically provided a bluetooth interface to older audio equipment, PC's that don't have bluetooth, and (some) tablets. Does it work? Yes, no reservations. Fully charged, the battery was only 50% drained at the end of a 10 hour flight to London from Phoenix, AZ. I used this device in conjunction with my iPad mini, the aircraft infotainment system and even my PC at home. Binding was fast and effortless. Recommend you read the instructions because although binding and unbinding is easy (and works) the unit itself has a minimum of controls and you need to know what you're doing! I really can't speak to quality or range, but at least up to around ten to fifteen feet it was working fine, and sound quality was excellent without drop-out or interference. Can I listen to music while the unit is attached to a charger? Yes you can. This was a worry for me, especially since I forgot to recharge before the return trip. So I attached to a USB-C power bank and absolutely no problem, throughout charging, the unit worked fine. BTW, many airlines seem to be banning the use of power banks on or onto their aircraft - just another nuisance to check on before you fly! Do I know how much power is left? Yes, there are 4 white LED's which tell you how much charge you've got on the device. The top-most illuminated LED flashes until the next level is reached or the unit is fully charged. Finally, can two people listen to the same audio? Yes, my wife and I watched a video on the plane, with both of us wearing Bose NC headphones in bluetooth mode. The unit provides two, simultaneous links so for me that was the final box ticked. Some widgets are hard to use, but this one is well thought out and easy.

### ⭐⭐⭐⭐⭐ Review
*by R***. on 21 October 2024*

Bought the Avantree Relay BT transmitter specifically for when travelling on planes. Wanted to use my Technics EAH- AZ80 for travelling rather than headphones as they are much more portable and convenient to carry around. The item arrived promptly and when I paired it first time, it connected seamlessly with my BT ear buds. On flight, the Avantree Relay hooked up to the airport 2 pin plug. Test was successful. In terms of sound, they sounded fantastic. This might be influenced by BT 5.3 technology which improved sound quality immensely (vs 4.0). I did not experience the latency issue with these (as some reviews had mentioned this a few times). The audio and visual were quite in sync. Overall, very happy with purchase and highly recommend this to anyone who wants the convenience of using their BT ear buds to listen to the entertainment system when flying by plane or any other mode of transport for that matter!

## Frequently Bought Together

- Avantree Relay - Airplane Bluetooth 5.3 Adapter with Qualcomm aptX Adaptive, Supports 2 AirPods or Headphones, 20Hr Playtime, 3.5mm AUX Wireless Audio Transmitter for Travel Flight, Airline, Gym, TV
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-20*