---
product_id: 724793419
title: "Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym"
brand: "avantree"
price: "฿3909"
currency: THB
in_stock: true
reviews_count: 13
category: "Avantree"
url: https://www.desertcart.co.th/products/724793419-avantree-relay-bluetooth-transmitter-for-airplanes-25-hours-playtime-aptx
store_origin: TH
region: Thailand
---

# Bluetooth 5.3 for crystal-clear sound 25-hour battery life for nonstop use aptX Low Latency for lag-free audio Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym

**Brand:** avantree
**Price:** ฿3909
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your audio game anywhere, anytime—because your ears deserve the best.

## Quick Answers

- **What is this?** Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym by avantree
- **How much does it cost?** ฿3909 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/724793419-avantree-relay-bluetooth-transmitter-for-airplanes-25-hours-playtime-aptx)

## 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

- • **Travel-Ready Design:** Comes with a sleek zippered case for effortless portability—never leave your audio companion behind.
- • **Endurance That Keeps Up:** Up to 25 hours of continuous playback ensures your music or movies last through long flights and intense gym sessions.
- • **Universal Compatibility:** Works flawlessly with all Bluetooth headphones and earphones, from AirPods to Bose QuietComfort and Sony WH-1000XM5.
- • **Next-Level Audio Fidelity:** Bluetooth 5.3 combined with Qualcomm aptX Low Latency Adaptive tech delivers premium sound quality with near-zero delay.
- • **Seamless Dual-Device Streaming:** Connect two headphones or AirPods simultaneously without a hitch, perfect for shared entertainment on flights or workouts.

## Overview

The Avantree Relay is a premium Bluetooth 5.3 audio transmitter designed for seamless wireless connection to airplane entertainment systems, TVs, and gym equipment. Featuring Qualcomm aptX Low Latency technology, it supports dual headphone connections with high-quality, lag-free sound. Its long-lasting 25-hour battery and compact carrying case make it the ultimate travel and lifestyle audio companion compatible with all Bluetooth headphones.

## Description

desertcart.co.jp: Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym : Electronics

Review: Works well - Some airlines are gradually investing in Bluetooth but for now this is a handy little accessory for my headphones on long flights.
Review: 初期設定も簡単で無事接続できました。

## Features

- 【WIRELESS & WIDE COMPATIBILITY】3.5mm AUX can be directly connected to the earphone jack on the airplane seat monitor. Enjoy in-flight entertainment in comfort with Bluetooth headphones and earphones without the airline wired headsets. Supports wireless playback on airplanes, as well as devices that support 0.1 inch (3.5 mm) output, such as gym machines and computers
- Simultaneous Connection with 2 Devices: This Bluetooth transmitter allows you to pair two Bluetooth headphones and AirPods simultaneously. Audio output on two devices simultaneously, perfect for viewing on plane with couples, friends and family. Lightweight, pocket-sized design with zipper case for easy carrying You can use it comfortably on airplanes, as well as at the gym, business trips, and overseas travel
- About non-compatible devices: Relay is a dedicated transmitter for airplane seat audio systems equipped with a 0.1 inch (3.5 mm) aux earphone jack. Cannot be used with smartphones, tablets, car audio, TV, or musical instruments
- 【Clear, Stable Wireless Sound】Qualcomm aptX Adaptive technology ensures balanced and stable wireless connection. You can enjoy it comfortably during your flight. When used with aptX Adaptive/HD/Low Latency headphones, you can enjoy low-latency playback with reduced video and audio. Supported codec and delay performance may vary depending on the headphone and earphone specifications. Audio delay may occur on devices that only support SBC such as AirPods
- 【Up to 25 Hours Playtime】Avantree Relay provides up to 25 hours of wireless playback on a full charge. You can use it safely even during long flies and training. LED lamp to see the connection status and button operation for easy pairing and volume adjustment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DMFB3VJZ |
| Additional Features | 1. High sound quality, low latency, 2. Long playback, up to 25 hours, 3. Stable communication, maximum transmission distance of 32.8 ft (10 m) |
| Amazon Bestseller | #3,467 in Electronics ( See Top 100 in Electronics ) #7 in MP3 Player Bluetooth Transmitters |
| Battery Weight | 3 Grams |
| Bluetooth support? | Yes |
| Brand | Avantree |
| Built-In Media | Airplane Bluetooth Adapter |
| Color | Midnight Blue |
| Compatibility Options | Bluetooth Headphones, Airplane Monitors, Gym Equipment, AirPods |
| Country of Origin | China |
| Customer Reviews | 4.3 4.3 out of 5 stars (5,948) |
| Data Link Protocol | Bluetooth |
| Hardware Interface | Bluetooth 5 |
| Includes Remote | No |
| Lithium Battery Weight | 4 Grams |
| Lithium-Battery Energy Content | 0.8 Watt Hours |
| Manufacturer | Avantree |
| Number of Batteries | 1 Lithium Polymer batteries required. |
| Number of Channels | 2 |
| Number of Lithium-ion Cells | 1 |
| Rechargeable Battery Included | Yes |
| Warranty Description | Warranty period: 24 months (Product registration covers the first 12 months return shipping cost) | Full Support: Chat, email, telephone, online consultation, video tutorial, FAQ and product registration - avantree.com/support |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** Avantree
- **Color:** Midnight Blue
- **Supports Bluetooth Technology:** Yes
- **Wireless Communication Standard:** Bluetooth

## Images

![Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym - Image 1](https://m.media-amazon.com/images/I/41E+iBehgSL.jpg)
![Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym - Image 2](https://m.media-amazon.com/images/I/61mH5LtjsfL.jpg)
![Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym - Image 3](https://m.media-amazon.com/images/I/51smPjgBycL.jpg)
![Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym - Image 4](https://m.media-amazon.com/images/I/61HTx1y9ztL.jpg)
![Avantree Relay - Bluetooth Transmitter for Airplanes, 25 Hours Playtime, aptX Adaptive & HD Audio Transmitter with Qualcomm Chip, Compatible with AirPods/Wireless Earphones/Headphones, Transmitter, Perfect for Airplane/Travel/Gym - Image 5](https://m.media-amazon.com/images/I/418q7Z3yJiL.jpg)

## Available Options

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

## Questions & Answers

**Q: どの航空会社でも使えますか？**
A: はい。デュアルまたはシングルの3.5mmプラグに対応しており、ほとんどの機内エンターテインメントシステムで使用できます。

**Q: 2台のヘッドホンに同時接続できますか？**
A: はい、2台のBluetoothヘッドホンを同時にペアリングし、音声を共有できます。

**Q: ヘッドホンがAvantree Relayに接続できません。どうすればいいですか？**
A: 多くの場合、ヘッドホンがスマホなど別のデバイスに接続されたままになっています。まずスマホや他の機器のBluetoothをオフにしてください。その後、Relay（赤青点滅）とヘッドホンをペアリングモードにします。ヘッドホンが他機器から解放されると、数秒で自動的に接続されます。

**Q: スマホやタブレットでも使えますか？**
A: いいえ。本製品は送信専用のため、スマホやタブレットから音声を受信することはできません。

**Q: 他のアダプターとの違いは？**
A: Qualcomm製の高性能チップを採用し、クリアな音質と安定した接続、低遅延のワイヤレス体験を実現。幅広いワイヤレスヘッドホンに対応し、一般的な低性能モデルより優れた性能を発揮します。

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by J***S on April 1, 2026*

Some airlines are gradually investing in Bluetooth but for now this is a handy little accessory for my headphones on long flights.

### ⭐⭐⭐⭐⭐ Review
*by R***U on April 2, 2026*

初期設定も簡単で無事接続できました。

### ⭐⭐⭐⭐ Review
*by A***ー on March 24, 2026*

良い

## 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 Thailand*
*Store origin: TH*
*Last updated: 2026-05-14*