---
product_id: 724793376
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: "฿3802"
currency: THB
in_stock: true
reviews_count: 13
category: "Avantree"
url: https://www.desertcart.co.th/products/724793376-avantree-relay-bluetooth-transmitter-for-airplanes-25-hours-playtime-aptx
store_origin: TH
region: Thailand
---

# Qualcomm chip for HD & aptX Adaptive sound 25 hours continuous playtime Bluetooth 5.3 dual device connection 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:** ฿3802
**Availability:** ✅ In Stock

## Summary

> ✈️ Elevate your audio journey—wireless freedom wherever you roam!

## 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?** ฿3802 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/724793376-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

- • **Endurance That Keeps Up:** Up to 25 hours of uninterrupted playback—perfect for long flights or marathon workouts.
- • **Universal Compatibility:** Works effortlessly with AirPods, Bose, and all Bluetooth headphones via 3.5mm AUX input.
- • **Travel-Ready Compact Design:** Lightweight, pocket-sized with a protective zipper case—your ultimate audio companion on the go.
- • **Seamless Dual Audio Streaming:** Connect two Bluetooth headphones simultaneously for shared in-flight or gym audio experiences.
- • **Audiophile-Grade Sound Quality:** Powered by Qualcomm’s aptX Adaptive and HD codecs for crystal-clear, low latency audio.

## Overview

The Avantree Relay is a premium Bluetooth transmitter featuring Qualcomm’s advanced chip with aptX Adaptive and HD audio support, enabling low latency, high-quality sound. It connects two Bluetooth devices simultaneously via Bluetooth 5.3, offers up to 25 hours of continuous playback, and supports universal compatibility with headphones like AirPods and Bose through a 3.5mm AUX connection. Compact and travel-friendly, it’s ideal for airplane entertainment, gym sessions, and business trips.

## 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: 2026年2月に購入し、10回ほど使用してますが、1度音声が聞こえなくなったものの再起動させたらすぐに直りました。 携帯のしやすさ、接続性ともに満足ですし、 出勤時、在宅勤務等でのTeams会議でとても重宝しています。(スマホ等でもTeams参加できますが、画面共有等で不便) まだ利用したことはないですが、機内での利用も楽しみです。
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.

## 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 | B0CL9C95T9 |
| Amazon Bestseller | #3,839 in Electronics ( See Top 100 in Electronics ) #9 in MP3 Player Bluetooth Transmitters |
| Brand | Avantree |
| Color | white-1 |
| Compatible Devices | Tablet |
| Country of Origin | China |
| Customer Reviews | 4.3 4.3 out of 5 stars (5,883) |
| Data Link Protocol | Bluetooth |
| Hardware Interface | Bluetooth, Bluetooth 5 |
| Item Weight | 4.5 Ounces |
| Manufacturer | Avantree |
| Mfr Part Number | BTTC-218-W |
| Model Number | BTTC-218-W |
| Warranty Description | 2 Year Limited Warranty |

## Product Details

- **Brand:** Avantree
- **Color:** white-1
- **Compatible Devices:** Tablet
- **Data Link Protocol:** Bluetooth
- **Hardware Interface:** Bluetooth, Bluetooth 5
- **Item Weight:** 4.5 Ounces
- **Manufacturer:** Avantree

## 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/41jpSPXvzKL.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/61fef9uiDrL.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/51m+UPr6JvL.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/41Ai4kdt6aL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will it work with any airline?**
A: YesCompatible with dual or single 3.5mm plug, compatible with most in-flight entertainment systems

**Q: Can I connect two headphones simultaneously?**
A: Yes, you can pair two Bluetooth headphones at the same time and share the voice

**Q: Headphones can't connect to Avantree RelayWhat do I do?**
A: In many cases, your headphones remain connected to another device such as your smartphonePlease turn off the Bluetooth of your smartphone or other devices firstThen put Relay and headphones into pairing modeWhen the headphone is released from other devices, it will connect automatically in seconds

**Q: Can I use it with a smartphone or tablet?**
A: NoThis product is only for transmission, so you cannot receive audio from your smartphone or tablet

**Q: What is different from other adapters?**
A: Featuring Qualcomm high-performance chip for clear sound quality, stable connection, and low latency wireless experienceCompatible with a wide range of wireless headphones and outperforms other low performance models

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by 無***名 on March 16, 2026*

2026年2月に購入し、10回ほど使用してますが、1度音声が聞こえなくなったものの再起動させたらすぐに直りました。 携帯のしやすさ、接続性ともに満足ですし、 出勤時、在宅勤務等でのTeams会議でとても重宝しています。(スマホ等でもTeams参加できますが、画面共有等で不便) まだ利用したことはないですが、機内での利用も楽しみです。

### ⭐⭐⭐⭐⭐ 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 A***ー on March 24, 2026*

良い

## 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.co.th/products/724793376-avantree-relay-bluetooth-transmitter-for-airplanes-25-hours-playtime-aptx](https://www.desertcart.co.th/products/724793376-avantree-relay-bluetooth-transmitter-for-airplanes-25-hours-playtime-aptx)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-28*