---
product_id: 582838981
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: "¥13058"
currency: JPY
in_stock: true
reviews_count: 12
category: "Avantree"
url: https://www.desertcart.jp/products/582838981-avantree-relay-premium-airplane-bluetooth-adapter-with-advanced-qualcomm-chipset
store_origin: JP
region: Japan
---

# Qualcomm aptX Adaptive chipset Dual headphones support 25hrs 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:** ¥13058
**Availability:** ✅ In Stock

## Summary

> ✈️ Elevate your in-flight audio game—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?** ¥13058 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/582838981-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

- • **Plug & Play Freedom:** Seamlessly transforms any airplane 3.5mm audio jack into a wireless Bluetooth transmitter—ditch the cables and embrace hassle-free travel.
- • **Next-Level Audio Stability:** Powered by an advanced Qualcomm aptX Adaptive chipset, experience crystal-clear HD sound with minimal latency tailored for airplane audio systems.
- • **Uninterrupted Long Haul Power:** Enjoy up to 25 hours of wireless audio bliss on a single charge—perfect for transcontinental flights and beyond.
- • **Travel-Ready Durability & Design:** Compact, lightweight, and engineered specifically for airplane seatback systems, making it the ultimate travel essential for the modern professional.
- • **Share the Journey, Share the Sound:** Simultaneously connect two Bluetooth headphones and sync your in-flight entertainment with your travel companion effortlessly.

## Overview

The Avantree Relay is a premium Bluetooth transmitter designed specifically for airplane 3.5mm audio jacks, enabling wireless streaming to two Bluetooth headphones simultaneously. Featuring an advanced Qualcomm aptX Adaptive chipset, it delivers high-definition audio with low latency and up to 25 hours of battery life. Compact and travel-optimized, it’s the perfect companion for frequent flyers seeking cable-free, premium sound 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: Big upgrade to flying for a reasonable price. - These work very well and are a huge upgrade to flying on long flights. No more blasting your eardrums with the cheap headphones they give/sell on the flight. Connection is super easy and consistent. I'm glad I got them.

## Features

- 【FOR In-Flight Wireless Listening】For travelers who want to use Bluetooth headphones with airplane seat 3.5mm audio jacks, without cables. Designed specifically for airplanes, seatback screens, and other 3.5mm audio-out sources – not phones or instruments.
- 【Stable Audio For Movies】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 | B0CL9C95T9 |
| Batteries | 1 Lithium Polymer batteries required. |
| Best Sellers Rank | #1 in MP3 Player Bluetooth Transmitters |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,530) |
| Date First Available | April 27, 2023 |
| Item Weight | 4.5 ounces |
| Item model number | BTTC-218-W |
| Manufacturer | Avantree |
| Product Dimensions | 6.46 x 0.75 x 5.71 inches |

## Product Details

- **Brand:** Avantree
- **Color:** 2-White
- **Compatible Devices:** Headphone, Airline Entertainment System, Gym Equipment
- **Data Link Protocol:** Bluetooth
- **Hardware Interface:** Bluetooth, Bluetooth 5
- **Item Weight:** 4.5 Ounces
- **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/41+EuzcVwBL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this work with a regular TV?**
A: As long as your TV has an AUX audio output jack, the Relay will work with it.

**Q: Will I get audio lag or lip-sync delays with my headphones?**
A: Your headphones must support either aptX Low Latency or aptX Adaptive in order to eliminate audio latency. Please note that most true wireless earbuds (such as AirPods) do not currently support these audio codecs.

**Q: How are the volume levels?**
A: You should be able to reach sufficient volume levels by adjusting the volume on both the Relay, your headphones, and / or the audio source.

**Q: How long does it take to fully charge the adapter?**
A: It only takes 1.5 hours to fully charge the adapter.

**Q: Can I connect my phone to the Relay via Bluetooth?**
A: No, as a transmitter, the Relay is designed to only connect to audio devices (such as your headphones or AirPods) via Bluetooth.

## 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.

### ⭐⭐⭐⭐⭐ Big upgrade to flying for a reasonable price.
*by K***R on January 31, 2026*

These work very well and are a huge upgrade to flying on long flights. No more blasting your eardrums with the cheap headphones they give/sell on the flight. Connection is super easy and consistent. I'm glad I got them.

### ⭐⭐⭐⭐⭐ 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 - Premium Airplane Bluetooth 5.3 Adapter, Supports 2 AirPods or Headphones with aptX Adaptive, 3.5mm AUX Jack Wireless Audio Transmitter for Planes, Airline, Travel, TV
- SARISUN Travel Pillows for Airplanes, Airplane Pillow for Long Flight, Airplane Head Strap with Eye Mask for Sleep, Travel Neck Pillow for Car Road Trip, 360° Support Headrest, Stop Bobblehead, Black
- Airplane Pockets Airplane Tray Table Cover with Pocket Organizer | Seat Back Organizer & Storage for Personal Items | Travel Accessories | Clean and Convenient Airplane Travel Essentials for Flying

---

## 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.jp/products/582838981-avantree-relay-premium-airplane-bluetooth-adapter-with-advanced-qualcomm-chipset](https://www.desertcart.jp/products/582838981-avantree-relay-premium-airplane-bluetooth-adapter-with-advanced-qualcomm-chipset)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-07*