Turn any analogue audio device into a Bluetooth device with ProTuner-BT. Plug ProTuner-BT into your seat’s headphone jack and enjoy provided entertainment through your wireless headphones. This wireless audio adapter provides latency free audio streaming and stable connectivity through Bluetooth v5.0. It also features a 200mAh battery that lets you enjoy 8 hours of continuous usage time, perfect for long haul flights. Experience wireless freedom with ProTuner-BT.