Relay Bluetooth adapter for aircraft or audio devices with aptX Adaptive & Low Latency. The included dual 3.5mm aircraft adapter makes the Relay usable on any aircraft, regardless of which audio output jack you will find. Also works with any device that outputs audio via AUX, such as tablets, PCs, fitness equipment, etc., and can be connected to any Bluetooth headphones or earphones (e.g. AirPods Pro 2). With support for the aptX Adaptive and aptX Low Latency codecs, the Relay transmits high quality, low latency audio when used with the same headphones. The Relay also uses Bluetooth 5.3 technology, which enables stable and reliable connections. With the Relay's intuitive LEDs, you can easily connect up to two audio devices to your Relay and share audio with a second person. With up to 20 hours of battery life, you can get through a flight, a movie marathon or anything else. If the battery ever runs out, just plug it in and keep using it while it recharges. Relay's built-in controls and handy LED indicators let you adjust volume, pair, reconnect, clear pairing history and view battery level.
Relay Bluetooth adapter for aircraft or audio devices with aptX Adaptive & Low Latency. The included dual 3.5mm aircraft adapter makes the Relay usable on any aircraft, regardless of which audio output jack you will find. Also works with any device that outputs audio via AUX, such as tablets, PCs, fitness equipment, etc., and can be connected to any Bluetooth headphones or earphones (e.g. AirPods Pro 2). With support for the aptX Adaptive and aptX Low Latency codecs, the Relay transmits high quality, low latency audio when used with the same headphones. The Relay also uses Bluetooth 5.3 technology, which enables stable and reliable connections. With the Relay's intuitive LEDs, you can easily connect up to two audio devices to your Relay and share audio with a second person. With up to 20 hours of battery life, you can get through a flight, a movie marathon or anything else. If the battery ever runs out, just plug it in and keep using it while it recharges. Relay's built-in controls and handy LED indicators let you adjust volume, pair, reconnect, clear pairing history and view battery level.
in 52 offers
last seen 10 Sept 2026
The lowest price we last saw for Avantree Relay - Premium Airplane Bluetooth 5.3 Transmitter For All Headphones, Apt-X Low Latency, Supports 2 Headphones or Airpods, Wireless Audio was $22.83 at eBay.com.au, compared across 14 retailers (last seen 10 Sept 2026). Prices may have changed since.
Avantree Relay - Premium Airplane Bluetooth 5.3 Transmitter For All Headphones, Apt-X Low Latency, Supports 2 Headphones or Airpods, Wireless Audio
Relay Bluetooth adapter for aircraft or audio devices with aptX Adaptive & Low Latency. The included dual 3.5mm aircraft adapter makes the Relay usable on any aircraft, regardless of which audio output jack you will find. Also works with any device that outputs audio via AUX, such as tablets, PCs, fitness equipment, etc., and can be connected to any Bluetooth headphones or earphones (e.g. AirPods Pro 2). With support for the aptX Adaptive and aptX Low Latency codecs, the Relay transmits high quality, low latency audio when used with the same headphones. The Relay also uses Bluetooth 5.3 technology, which enables stable and reliable connections. With the Relay's intuitive LEDs, you can easily connect up to two audio devices to your Relay and share audio with a second person. With up to 20 hours of battery life, you can get through a flight, a movie marathon or anything else. If the battery ever runs out, just plug it in and keep using it while it recharges. Relay's built-in controls and handy LED indicators let you adjust volume, pair, reconnect, clear pairing history and view battery level.
Relay Bluetooth adapter for aircraft or audio devices with aptX Adaptive & Low Latency. The included dual 3.5mm aircraft adapter makes the Relay usable on any aircraft, regardless of which audio output jack you will find. Also works with any device that outputs audio via AUX, such as tablets, PCs, fitness equipment, etc., and can be connected to any Bluetooth headphones or earphones (e.g. AirPods Pro 2). With support for the aptX Adaptive and aptX Low Latency codecs, the Relay transmits high quality, low latency audio when used with the same headphones. The Relay also uses Bluetooth 5.3 technology, which enables stable and reliable connections. With the Relay's intuitive LEDs, you can easily connect up to two audio devices to your Relay and share audio with a second person. With up to 20 hours of battery life, you can get through a flight, a movie marathon or anything else. If the battery ever runs out, just plug it in and keep using it while it recharges. Relay's built-in controls and handy LED indicators let you adjust volume, pair, reconnect, clear pairing history and view battery level.
The all-time low we recorded was $20.00 on 2 June 2026.
Prices last updated 10 Sept 2026.
Last updated at 10/09/2026 00:49:18
Avantree Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Future-Proof Firmware Upgradable, 3.5mm
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Relay Wireless Audio Transmitter Avantree BTTC-218 - Airplane 3.5m AUX -
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
RELAY BLUETOOTH ADAPTER FOR AIRPLANE BT5.3 LOW LATENCY TRANSMITTER TC218
30-day returns
Avantree Relay - Bluetooth 2 AirPods// | aptX Adaptive & HD 25 Qualcomm 3.5mm AUX //
Delivery between 16–19 Sept $29
Avantree Relay - Premium Airplane Bluetooth 5.3 Adapter for Headphones 3.5mm AUX Jack Wireless Audio
Free delivery
Avantree Bluetooth Adapter For Airplane BT 5.3 Low Latency Transmitter TC218
Free delivery between Fri – Sat
Avantree Bluetooth Adapter For Airplane BT 5.3 Low Latency Transmitter TC218
Delivery between 12–20 Sept $10
Avantree Bluetooth Adapter For Airplane BT 5.3 Low Latency Transmitter TC218
Free delivery between Sat – Wed
Avantree Bluetooth Adapter For Airplane BT 5.3 Low Latency Transmitter TC218
Free delivery
Avantree Bluetooth Adapter For Airplane BT 5.3 Low Latency Transmitter TC218
Free delivery
originally posted on galaxus.ch
Used it on two long haul flights with my Bose Ultra headphone, great for watching movies and no issue with latency. It's small, uses USB-c to charge and lasted no issue on my 12h flights.
| Hardware Interface | Bluetooth |
| Compatible Devices | Smart TV, Desktop, Tablet |
| Mounting Hardware | Avantree Relay Adapter |
| Power Source | Battery Powered |
| Batteries Included | Yes |
Avantree Relay - Airplane Bluetooth Adapter for 2 AirPods or Headphones | Qualcomm aptX Adaptive, 25H Battery, Future-Proof Firmware Upgradable, 3.5mm
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Relay Wireless Audio Transmitter Avantree BTTC-218 - Airplane 3.5m AUX -
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
RELAY BLUETOOTH ADAPTER FOR AIRPLANE BT5.3 LOW LATENCY TRANSMITTER TC218
30-day returns
Avantree Relay - Bluetooth 2 AirPods// | aptX Adaptive & HD 25 Qualcomm 3.5mm AUX //
Delivery between 16–19 Sept $29
Avantree Relay - Premium Airplane Bluetooth 5.3 Adapter for Headphones 3.5mm AUX Jack Wireless Audio
Free delivery
Used it on two long haul flights with my Bose Ultra headphone, great for watching movies and no issue with latency. It's small, uses USB-c to charge and lasted no issue on my 12h flights.
| Hardware Interface | Bluetooth |
| Compatible Devices | Smart TV, Desktop, Tablet |
| Mounting Hardware | Avantree Relay Adapter |
| Power Source | Battery Powered |
| Batteries Included | Yes |