---
product_id: 582838981
title: "Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Firmware Upgrades, Volume Controls, 3.5mm AUX Audio Transmitter for Flight Travel & Gym"
brand: "avantree"
price: "¥11646"
currency: JPY
in_stock: true
category: "Avantree"
url: https://www.desertcart.jp/products/582838981-relay-airplane-bluetooth-adapter-for-2-airpods-or-headphones-qualcomm
store_origin: JP
region: Japan
---

# Qualcomm aptX Adaptive audio Dual Bluetooth headphone support 25H battery life Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Firmware Upgrades, Volume Controls, 3.5mm AUX Audio Transmitter for Flight Travel & Gym

**Brand:** avantree
**Price:** ¥11646
**Availability:** ✅ In Stock

## Summary

> ✈️ Elevate your travel audio game — share, stream, and soar in style!

## Quick Answers

- **What is this?** Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Firmware Upgrades, Volume Controls, 3.5mm AUX Audio Transmitter for Flight Travel & Gym by avantree
- **How much does it cost?** ¥11646 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-relay-airplane-bluetooth-adapter-for-2-airpods-or-headphones-qualcomm)

## 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

- • **Effortless 3-Step Setup:** Plug, pair, and play — simple connectivity with any 3.5mm audio source and included airplane adapter.
- • **Seamless Dual Audio Sharing:** Connect two Bluetooth headphones simultaneously for shared in-flight entertainment without tangled wires.
- • **Audiophile-Grade Sound Quality:** Experience crystal-clear, low-latency audio with Qualcomm aptX Adaptive and aptX HD technology.
- • **Endurance for Long-Haul Flights:** Up to 25 hours of uninterrupted playback powered by a fast 2-hour rechargeable lithium-polymer battery.
- • **Onboard Volume & Firmware Control:** Adjust volume directly on the device and keep your adapter future-proof with easy firmware upgrades.

## Overview

The Avantree Relay is a premium Bluetooth transmitter designed for airplane entertainment systems, enabling two users to wirelessly share audio via Bluetooth headphones or AirPods. Featuring Qualcomm aptX Adaptive technology for superior sound quality, a robust 25-hour battery life for long flights, and simple plug-and-play setup with onboard volume controls and firmware upgrade support, it’s the ultimate travel companion for audiophiles and frequent flyers alike.

## Description

desertcart.com: Avantree Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Firmware Upgrades, Volume Controls, 3.5mm AUX Audio Transmitter for Flight Travel & Gym : Electronics

## Features

- SHARE IN-FLIGHT AUDIO — Connect two pairs of Bluetooth headphones or earbuds to one airplane entertainment screen, so you and a travel partner can listen together without wires.
- CLEAR, RELIABLE WIRELESS SOUND — Qualcomm audio technology with aptX Adaptive and aptX HD support delivers stable, detailed audio with compatible headphones.
- 25-HOUR BATTERY FOR LONG TRIPS — Built for long-haul flights with up to 25 hours of playtime, onboard volume controls, and a clear battery indicator.
- SIMPLE 3-STEP PAIRING — Plug Relay into the 3.5 mm audio jack, put your headphones in pairing mode, and connect. Includes a dual-prong airplane adapter.
- TRANSMITTER ONLY, CHECK BEFORE BUYING — Designed to send audio from 3.5 mm sources to Bluetooth headphones. It has no microphone and is not intended for phone calls, TVs, hearing aids, musical instruments, or receiving audio.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CL9C95T9 |
| Audio Input | Auxiliary |
| Audio Output Mode | a2dp |
| Audio Output Type | Headphone |
| Battery Type | A lightweight battery, taking 2 hours to charge, using one lithium-ion or lithium-polymer cell with a low energy content |
| Battery Weight | 4.4 g |
| Best Sellers Rank | #1 in MP3 Player Bluetooth Transmitters |
| Brand | Avantree |
| Color | 2-White |
| Compatibility Options | Headphones |
| Compatible Devices | Headphone, Airline Entertainment System, Gym Equipment |
| Connectivity Technology | AUX, Bluetooth |
| Connector Type Used on Cable | Auxiliary |
| Control Method | Push Button |
| Customer Reviews | 4.3 4.3 out of 5 stars (6,557) |
| Data Link Protocol | Bluetooth |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) |
| Hardware Interface | Bluetooth, Bluetooth 5 |
| Installation Type | Portable |
| Lithium Battery Weight | 4 g |
| Lithium-Battery Energy Content | 0.8 watt-hours |
| Manufacturer | Avantree |
| Model Name | Relay |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Channels | 2 |
| Number of Lithium-ion Cells | 1 |
| Number of Ports | 2 |
| Power Source | Battery Powered |
| Supported Application | Any audio application or format supported by the connected airplane entertainment system |
| Supported Media Type | bluetooth |
| Supported Standards | Bluetooth, aptX Adaptive |
| Unit Count | 5.29 Ounce |
| Warranty Description | Warranty - 24 months (product registration to cover first 12m return shipment cost) | Extensive Support: Chat, Email, Phone, Online Clinic, Video Tutorials, FAQ and Registration - avantree.com/support |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** Avantree
- **Color:** 2-White
- **Connectivity Technology:** AUX, Bluetooth
- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Power Source:** Battery Powered

## Images

![Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Firmware Upgrades, Volume Controls, 3.5mm AUX Audio Transmitter for Flight Travel & Gym - 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.

## 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
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**Shop now:** [https://www.desertcart.jp/products/582838981-relay-airplane-bluetooth-adapter-for-2-airpods-or-headphones-qualcomm](https://www.desertcart.jp/products/582838981-relay-airplane-bluetooth-adapter-for-2-airpods-or-headphones-qualcomm)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-14*