The InLine Bluetooth Flight Audio Adapter wirelessly transmits audio signals from the in-flight entertainment system via Bluetooth in the highest quality to your favorite headphones, whether they are in-ear, on-ear, or over-ear. The adapter is compatible with common mono, stereo, and three-pole systems and also features a USB port. Power is ensured even on long flights through a battery and a charging case. Additionally, the Bluetooth Flight Audio Adapter can easily function as a battery-operated Bluetooth transmitter for audio sources with a 3.5 mm stereo jack. This allows you to stream Bluetooth audio to your headphones even while on the go, away from the airplane.