BLUETOOTH AUDIO TRANSMITTER FOR AIRPLANES: easily stream wireless stereo audio from in-flight entertainment systems to up to two AirPods or other Bluetooth headphones. Works with AirPods Pro 2, AirPods 4, AirPods Max, and other AirPods models, as well as other Bluetooth headphones and speakers. FOR AIRPODS AND OTHER BLUETOOTH HEADPHONES: instantly turn any standard 3.5mm headphone jack into a wireless connection for Bluetooth headphones or speakers WIRELESS AUDIO FOR DEVICES WITHOUT BLUETOOTH: works with 3.5mm audio devices including in-flight entertainment systems, computers, Nintendo Switch, Xbox / PlayStation controllers, treadmills and other gym equipment, A/V Receivers, TVs, and portable DVD players LAG-FREE HIGH-FIDELITY AUDIO: aptX Low Latency technology delivers clear, distortion-free digital sound and ultra-low audio delay with aptX-enabled devices COMPACT DESIGN & UP TO 20 HOURS OF BATTERY LIFE: Built-in battery provides up to 20 hours of playtime with one pair of headphones connected or 15 hours with two; can be used while charging; 1-year manufacturer's warranty