---
product_id: 532990695
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: "NT$2448"
currency: TWD
in_stock: true
reviews_count: 13
category: "Avantree"
url: https://www.desertcart.tw/products/532990695-avantree-relay-premium-airplane-bluetooth-adapter-with-advanced-qualcomm-chipset
store_origin: TW
region: Taiwan
---

# Dual Bluetooth headphone support 25 hours continuous playtime Designed for airplane 3.5mm AUX jacks 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:** NT$2448
**Availability:** ✅ In Stock

## Summary

> ✈️ Elevate your in-flight audio game—wireless freedom at cruising altitude!

## 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?** NT$2448 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/532990695-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

- • **Marathon Battery Life:** Up to 25 hours of uninterrupted playback keeps you entertained on even the longest international flights without scrambling for a charge.
- • **Qualcomm-Powered HD Sound:** Experience crystal-clear aptX Adaptive audio with ultra-low latency, compatible with AirPods, Bose, and all top-tier Bluetooth headphones.
- • **Plug, Pair, Play—No Hassle:** Effortless setup with airplane seatback screens and other 3.5mm audio sources; compact and lightweight for your carry-on essentials.
- • **Fly Wire-Free, Stay Connected:** Seamlessly stream in-flight entertainment to your Bluetooth headphones—ditch the cables and enjoy premium sound at 30,000 feet.
- • **Double the Audio, Double the Fun:** Connect two Bluetooth headphones simultaneously for perfectly synced audio—ideal for couples or travel buddies sharing movies or playlists.

## Overview

The Avantree Relay is a premium Bluetooth transmitter engineered specifically for airplane use, enabling wireless streaming from 3.5mm audio jacks to two Bluetooth headphones simultaneously. Powered by an advanced Qualcomm chipset, it delivers aptX Adaptive HD audio with minimal latency and boasts an impressive 25-hour battery life, making it the ultimate travel companion for noise-cancelling headphone users on long-haul flights.

## Description

desertcart.com: 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 : Electronics

Review: Ideal for flying with bluetooth headphones; a well thought out product - 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: Relay works well plugged into airplane IFE and computer headphone port - Relay set-up wouldn't complete the connection at first; however, when I first used it on the airplane, it worked perfectly and was easy to use. Just plugged it into the airplane IFE and it connected automatically to my headphones.

## Features

- 【FOR In-Flight Wireless Listening】For travelers who want to use Bluetooth headphones with airplane seat 3.5mm audio iacks. without cables. Designed specifically for airplanes, seatback screens, and other 3.5mm audio-out sources - not phones or instruments.
- 【Stable Audio For Movies & TV】Compatible with AirPods, Bose and all Bluetooth headphones. Simply plug the adapter into 3.5mm AUX jack to stream audio from airplane. (Not compatible with phones, car stereos, or hearing aids.)
- 【Dual Headphones, One Source】Connect two Bluetooth headphones at the same time to share in-flight movies or music. Audio stays synchronized between both listeners, making it ideal for couples or family travel.
- 【NOT FOR Real-Time Or instrument Use】NOT for musicians, gaming, live monitoring, karaoke, or electronic instruments. Bluetooth transmission introduces delay that makes real-time performance or rhythm-critical use unusable, even though audio quality itself is stable.
- 【LIMITED Bluetooth Behavior & Latency】Relay is a transmitter only and pairs only with headphones, not phones or tablets. Bluetooth must be turned off on previously paired devices to avoid auto-connection issues. Latency depends on headphones: aptX Adaptive ≈ low delay; Standard Bluetooth<150-200ms (lip-sync: may be noticeable)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3QQ4X6F |
| Batteries | 1 CR5 batteries required. (included) |
| Best Sellers Rank | #1 in MP3 Player Bluetooth Transmitters |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,389) |
| Date First Available | April 27, 2023 |
| Item Weight | 2.82 ounces |
| Item model number | BTTC-218 |
| Manufacturer | Avantree |
| Package Dimensions | 5.91 x 5.35 x 0.47 inches |

## Product Details

- **Brand:** Avantree
- **Color:** 1-Black
- **Compatible Devices:** Bluetooth headphones or earbuds
- **Data Link Protocol:** Bluetooth
- **Hardware Interface:** Bluetooth
- **Manufacturer:** Avantree

## 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)

## Available Options

This product comes in different **Color** 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

### ⭐⭐⭐⭐⭐ Ideal for flying with bluetooth headphones; a well thought out product
*by A***L on November 12, 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.

### ⭐⭐⭐⭐⭐ Relay works well plugged into airplane IFE and computer headphone port
*by A***R on January 5, 2026*

Relay set-up wouldn't complete the connection at first; however, when I first used it on the airplane, it worked perfectly and was easy to use. Just plugged it into the airplane IFE and it connected automatically to my headphones.

### ⭐⭐⭐⭐⭐ Easy pairing and good quality
*by C***S on January 25, 2026*

So far these are the best. I’ve went through two of the Airfly and struggle to connect via Bluetooth. It was very frustrating but Avantree is easy to pair and very intuitive. I decided to give these a try because i have a pair earphones from Avantree that i use in my home gym and they work and sound great. I hope this helps.

## 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 Taiwan*
*Store origin: TW*
*Last updated: 2026-02-05*