Avantree Relay Airplane Bluetooth 5.3 Adapter with Qualcomm aptX Adaptive, Supports 2 AirPods or Headphones, 20H Playtime, 3.5mm AUX Jack Wireless Audio Transmitter for Planes, Airline, Travel

【Enjoy Wireless Audio on Airplanes】Plug Relay directly into a standard 3.5 mm seatback audio jack or use the included dual-prong airline adapter on compatible aircraft. This Bluetooth transmitter for airplane entertainment streams in-flight movies and music wirelessly to AirPods, Bose, Sony, and other Bluetooth headphones. 【Clear, Stable Qualcomm Audio】 Powered by a Qualcomm chipset with aptX Adaptive and aptX HD support for clear, stable wireless sound while flying, working out, or traveling. aptX features require compatible headphones; AirPods use their standard Bluetooth codec. 【25-Hour 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. 【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. 【Made for Today, Upgradeable for Tomorrow】 Unlike basic adapters that stay the same after purchase, Relay supports firmware updates that can improve headphone compatibility, connection stability, and overall performance over time.