---
product_id: 660300924
title: "Zerone K21 Business Bluetooth Headset, Sweatproof Bluetooth Headphones Wireless V4.1 Business Earpiece with Noise Reduction Mic Earbuds for Office/Business/Workout"
price: "2893894₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/660300924-zerone-k21-business-bluetooth-headset-sweatproof-bluetooth-headphones-wireless-v4
store_origin: VN
region: Vietnam
---

# Zerone K21 Business Bluetooth Headset, Sweatproof Bluetooth Headphones Wireless V4.1 Business Earpiece with Noise Reduction Mic Earbuds for Office/Business/Workout

**Price:** 2893894₫
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Zerone K21 Business Bluetooth Headset, Sweatproof Bluetooth Headphones Wireless V4.1 Business Earpiece with Noise Reduction Mic Earbuds for Office/Business/Workout
- **How much does it cost?** 2893894₫ 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/660300924-zerone-k21-business-bluetooth-headset-sweatproof-bluetooth-headphones-wireless-v4)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Zerone K21 Business Bluetooth Headset, Sweatproof Bluetooth Headphones Wireless V4.1 Business Earpiece with Noise Reduction Mic Earbuds for Office/Business/Workout

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C3X82JN |
| Additional Features | Microphone Included, sports-and-exercise, water-resistant, wireless |
| Age Range Description | Adult |
| Antenna Location | Calling, Exercising |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 24 Hours |
| Battery Charge Time | 2.5 Hours |
| Best Sellers Rank | #194,872 in Electronics ( See Top 100 in Electronics ) #3,334 in Over-Ear Headphones |
| Bluetooth Range | 10 Meters |
| Bluetooth Version | 5.0 |
| Brand | Zerone |
| Brand Name | Zerone |
| Cable Features | Without Cable |
| Color | Black |
| Compatible Devices | Cellphones, Tablets, Laptops, Desktops |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Control Type | Touch Control |
| Controller Type | Integrated |
| Customer Reviews | 3.8 out of 5 stars 43 Reviews |
| Ear Placement | Over Ear |
| Earpiece Shape | Over-Ear, Hook |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Silicone |
| Form Factor | Over Ear |
| Frequency Range | 20 Hz - 20,000 Hz |
| Headphone Folding Features | Over Ear |
| Headphone Jack | USB |
| Headphones Ear Placement | Over Ear |
| Headphones Jack | USB |
| Is Autographed | No |
| Manufacturer | Zerone |
| Model Name | Zeroneko04sgat19 |
| Model Number | Zeroneko04sgat19 |
| Noise Control | Active Noise Cancellation |
| Number of Items | 1 |
| Specific Uses For Product | Business |
| Style Name | Modern |
| Theme | Professional and Active Lifestyle |
| UPC | 654936821576 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** Zerone
- **Color:** Black
- **Ear Placement:** Over Ear
- **Form Factor:** Over Ear
- **Noise Control:** Active Noise Cancellation

## Images

![Zerone K21 Business Bluetooth Headset, Sweatproof Bluetooth Headphones Wireless V4.1 Business Earpiece with Noise Reduction Mic Earbuds for Office/Business/Workout - Image 1](https://m.media-amazon.com/images/I/51t43vpMcCL.jpg)

## Frequently Bought Together

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---

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**Shop now:** [https://www.desertcart.vn/products/660300924-zerone-k21-business-bluetooth-headset-sweatproof-bluetooth-headphones-wireless-v4](https://www.desertcart.vn/products/660300924-zerone-k21-business-bluetooth-headset-sweatproof-bluetooth-headphones-wireless-v4)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-17*