---
product_id: 690460267
title: "Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym"
brand: "avantree"
price: "59721CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Avantree"
url: https://www.desertcart.sn/products/690460267-relay-airplane-bluetooth-adapter-for-airpods-bose-and-wireless-headphones
store_origin: SN
region: Senegal
---

# Dual Bluetooth device pairing 25 hours battery life aptX Adaptive & HD audio Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym

**Brand:** avantree
**Price:** 59721CFA
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym by avantree
- **How much does it cost?** 59721CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/690460267-relay-airplane-bluetooth-adapter-for-airpods-bose-and-wireless-headphones)

## 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-Ready Battery Life:** Up to 25 hours of uninterrupted wireless audio—perfect for cross-continental flights or extended gym sessions.
- • **Seamless Dual Audio Sharing:** Connect two Bluetooth headphones simultaneously and never miss a beat with friends or colleagues on the go.
- • **Future-Proof Firmware Updates:** Stay ahead with ongoing performance and compatibility improvements via easy firmware upgrades—your tech evolves with you.
- • **Premium Qualcomm Sound Engine:** Experience crystal-clear, low-latency audio with aptX Adaptive and HD support, elevating your in-flight entertainment.
- • **Plug & Play Flight Compatibility:** Universal 3.5mm AUX adapter included for instant connection to any airplane seatback screen—travel smarter, not harder.

## Overview

The Avantree Relay is a premium Bluetooth transmitter designed specifically for airplane entertainment systems and other 3.5mm AUX audio sources. Powered by a Qualcomm chip with aptX Adaptive and HD audio support, it delivers stable, high-quality wireless sound to AirPods, Bose, and other Bluetooth headphones. Featuring dual device connectivity, a robust 25-hour battery, and universal airplane compatibility with included adapters, Relay ensures seamless, lag-free audio on flights, at the gym, or while traveling. Firmware updates keep it optimized, making it the ultimate travel companion for professionals who demand premium sound and convenience.

## Description

Product Description Frequently Asked Question Q: Why is this more expensive than similar products? A: At Avantree, we use Qualcomm’s premium Bluetooth chip to deliver better sound, stable connection, lower latency, and stronger compatibility. Many lower-cost alternatives use basic chipsets with limited performance. Q: Can the Relay pair with my phone? A: No, the Relay is a transmitter, not a receiver. It is designed to send audio from devices like airplane entertainment systems to your Bluetooth headphones. It cannot connect to a phone. Dual Link The Relay’s intuitive LEDs allow you to easily connect up to two audio devices and share the audio. Included Adapter Connect to any plane with the double 3.5mm adapter – no need to purchase separately. Extended Playtime A battery life of up to 20 hours provides sufficient battery life to last you through any flight. Easy Setup Plug Plug the Relay into an in-flight entertainment system (use the adapter if necessary) or any other audio source with an AUX 3.5mm audio output jack. Power Turn both the Relay and your headphones on (some earbuds – such as AirPods – need to be powered off in order to place them in pairing mode.) Pair For first use, the Relay will automatically enter pairing mode. Place your headphones into pairing mode as well. Play Keep the devices close together and they'll connect. Press & hold the main button until the LED flashes blue & red to connect another pair. Dual 3.5mm Adapter Connect to any and every plane with the double 3.5mm adapter – no need to purchase separately. Dual 3.5mm Adapter Connect to any and every plane with the double 3.5mm adapter – no need to purchase separately. Multifunctional button Pair, reconnect, and display battery level with the multifunctional button. Multifunctional button Pair, reconnect, and display battery level with the multifunctional button. Battery level indicator Check your battery level at any time to make sure it’s sufficiently charged. Battery level indicator Check your battery level at any time to make sure it’s sufficiently charged. Connection indicator Easily pair and monitor the connection of up to two listening devices. Connection indicator Easily pair and monitor the connection of up to two listening devices. Volume adjustment Freely adjust the Relay’s volume. Note that your headphones’ and / or audio source’s volumes may need to be adjusted independently. Volume adjustment Freely adjust the Relay’s volume. Note that your headphones’ and / or audio source’s volumes may need to be adjusted independently. Will this work with a regular TV? As long as your TV has an AUX audio output jack, the Relay will work with it. Will this work with a regular TV? As long as your TV has an AUX audio output jack, the Relay will work with it. Will I get audio lag or lip-sync delays with my headphones? 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. Will I get audio lag or lip-sync delays with my headphones? 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. How are the volume levels? You should be able to reach sufficient volume levels by adjusting the volume on both the Relay, your headphones, and / or the audio source. How are the volume levels? You should be able to reach sufficient volume levels by adjusting the volume on both the Relay, your headphones, and / or the audio source. How long does it take to fully charge the adapter? It only takes 1.5 hours to fully charge the adapter. How long does it take to fully charge the adapter? It only takes 1.5 hours to fully charge the adapter. Can I connect my phone to the Relay via Bluetooth? No, as a transmitter, the Relay is designed to only connect to audio devices (such as your headphones or AirPods) via Bluetooth. Can I connect my phone to the Relay via Bluetooth? No, as a transmitter, the Relay is designed to only connect to audio devices (such as your headphones or AirPods) via Bluetooth. COMPARISON TABLE Avantree Relay Avantree SoundJet R1 Avantree Voyager

Review: Excellent Bluetooth adapter for flights and travel - I picked up the Avantree Relay mainly for use on flights, and it’s been very reliable so far. Setup is simple and quick, pairing easily with my Bluetooth headphones. Once connected, the audio has been stable with no noticeable dropouts or lag, even during long flights. Sound quality is very good for a Bluetooth adapter, and it works well for movies, TV shows, and general audio without sync issues. The adapter itself is compact and lightweight, making it easy to carry in hand luggage or a pocket. Battery life has been more than sufficient for long journeys, and I’ve been able to use it across multiple flights without needing to recharge in between. Build quality feels solid, and the physical controls are easy to use without needing to look at the device. It also works well beyond flights — I’ve used it with gym equipment and other non‑Bluetooth audio sources with consistent results. Overall, this is a well‑designed, dependable Bluetooth adapter that does exactly what it’s meant to do. A great option if you want wireless headphones to work properly with airplane entertainment systems or other wired audio sources.
Review: Good Value - Works really well, fantastic for a flight and good price too, sound quality is good and it’s super compact and durable, no noise and it’s very versatile.

## Features

- 【Built For Airplane Seat Screens】 Connect Relay to airplane seatback screens through a standard 3.5mm AUX jack and stream in-flight entertainment to your own AirPods, Bose, or Bluetooth headphones.
- 【Clear Qualcomm Travel Audio】 Powered by a Qualcomm chip with aptX Adaptive and aptX HD support for clear, stable wireless sound on flights, at the gym, or while traveling.
- 【Not For TVs, Phones, Or Assistive Listening Devices】 Not compatible with TVs, assistive listening devices, musical instruments, or real-time monitoring. Transmitter only – does not pair with phones or tablets.
- 【Firmware-Upgradeable Design】 Keep Relay up to date with firmware updates. Improvements include better compatibility with AirPods, enhanced stability for dual-device connections, and overall performance optimization over time.
- 【25Hrs Battery With Easy Controls】 Enjoy up to 25 hours of playtime with built-in volume buttons and a clear battery indicator, ideal for long flights, workouts, and frequent travel.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DMFB3VJZ |
| Audio Input | 3.5mm AUX |
| Audio Output Mode | Stereo |
| Audio Output Type | 3.5mm, Bluetooth |
| Battery Weight | 4.4 Grams |
| Best Sellers Rank | 681 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 3 in Audio & Video Adapters |
| Bluetooth support? | Yes |
| Box Contents | Relay Bluetooth Transmitter, Type C Charging Cable |
| Brand | Avantree |
| Brand Name | Avantree |
| Colour | Midnight Blue |
| Compatibility Options | Headphones, Airline Entertainment System |
| Compatible Devices | Airline Entertainment System, Gym Machine, Headphone |
| Connectivity Technology | AUX |
| Connectivity technology | AUX |
| Connector Type Used on Cable | Auxiliary |
| Control Method | Touch |
| Country of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 6,157 Reviews |
| Data Link Protocol | Bluetooth |
| Hardware Interface | Bluetooth 5 |
| Includes Remote | No |
| Installation Type | Wired |
| Lithium Battery Energy Content | 0.8 Watt Hours |
| Lithium Battery Weight | 4 Grams |
| Manufacturer | Avantree |
| Media Types | bluetooth |
| Model Name | Relay |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Channels | 2 |
| Number of Lithium-ion Cells | 1 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product Features | Connect 2 headphones or AirPods simultaneously with aptX-Adaptive & Low Latency support |
| Product Warranty | 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 |
| Rechargeable Battery Included | Yes |
| Special feature | Connect 2 headphones or AirPods simultaneously with aptX-Adaptive & Low Latency support |
| Supported Application | Any application with 3.5mm audio output |
| Supported Standards | Bluetooth 5.3, aptX Adaptive, aptX Low Latency |
| Unit Count | 1.0 count |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |

## Product Details

- **Brand:** Avantree
- **Colour:** Midnight Blue
- **Connectivity technology:** AUX
- **Power source:** Battery Powered
- **Special feature:** Connect 2 headphones or AirPods simultaneously with aptX-Adaptive & Low Latency support

## Images

![Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym - Image 1](https://m.media-amazon.com/images/I/41E+iBehgSL.jpg)
![Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym - Image 2](https://m.media-amazon.com/images/I/61QW0bnJV4L.jpg)
![Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym - Image 3](https://m.media-amazon.com/images/I/61mulwT8p0L.jpg)
![Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym - Image 4](https://m.media-amazon.com/images/I/51C+SFUi9nL.jpg)
![Relay – Airplane Bluetooth Adapter for AirPods, Bose & Wireless Headphones, Qualcomm Chip, aptX Adaptive & HD Audio Transmitter, 25Hrs Battery, 3.5mm AUX for Flight, Travel & Gym | Future-Proof Firmware Upgradable, Qualcomm aptX Adaptive, 25H Battery, 3.5mm AUX Transmitter for Flight Travel & Gym - Image 5](https://m.media-amazon.com/images/I/61jIdI1MwjL.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

### ⭐⭐⭐⭐⭐ Excellent Bluetooth adapter for flights and travel
*by B***D on 15 April 2026*

I picked up the Avantree Relay mainly for use on flights, and it’s been very reliable so far. Setup is simple and quick, pairing easily with my Bluetooth headphones. Once connected, the audio has been stable with no noticeable dropouts or lag, even during long flights. Sound quality is very good for a Bluetooth adapter, and it works well for movies, TV shows, and general audio without sync issues. The adapter itself is compact and lightweight, making it easy to carry in hand luggage or a pocket. Battery life has been more than sufficient for long journeys, and I’ve been able to use it across multiple flights without needing to recharge in between. Build quality feels solid, and the physical controls are easy to use without needing to look at the device. It also works well beyond flights — I’ve used it with gym equipment and other non‑Bluetooth audio sources with consistent results. Overall, this is a well‑designed, dependable Bluetooth adapter that does exactly what it’s meant to do. A great option if you want wireless headphones to work properly with airplane entertainment systems or other wired audio sources.

### ⭐⭐⭐⭐⭐ Good Value
*by V***S on 6 April 2026*

Works really well, fantastic for a flight and good price too, sound quality is good and it’s super compact and durable, no noise and it’s very versatile.

### ⭐⭐⭐⭐ Would be five stars but for....
*by G***S on 13 October 2024*

Works really nicely. Instructions are clear. Thanks for thinking to include a nice little travel bag. Would be five stars, but for the packaging unrecycleable at least in my location.

## 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
- Bose QuietComfort Bluetooth Headphones, Wireless Headphones with Active Over Ear Noise Cancelling and Mic, Deep Bass, Up to 24 Hours of Playtime, Twilight Blue - Limited Edition Color

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-07-14*