2-in-1 Bluetooth Transmitter Receiver : In TX mode, the bluetooth transmitter can transmit Non-Bluetooth audio sources (aircraft entertainment system audio, TV, MP3 player) to Bluetooth-enabled headphones and speakers via 3.5MM cable. In RX mode, the bluetooth receiver (RX mode) connects your smartphone to wired speakers/headphones/car stereo or home stereo via Bluetooth | Dual Pairs with LED Indicator: Bluetooth AUX adapter can connect to 2 devices simultaneously in RX/TX mode, so you can enjoy your music without worrying about disturbing others. Equipped with automatic connection memory function, after successfully connecting once, turn on Bluetooth again to automatically connect to your phone. There is a reset button if you ever need to pair with different devices. We recommend you turn off any nearby Bluetooth (such as your phone) when pairing | Bluetooth 5.3 & Qualcomm Chip: SONRU tv bluetooth adapter adopts bluetooth 5.3 and Qualcomm chip to ensure stable and fast connection. The transmission distance can reach 10 meters, Lightweight and easy to carry, making it a good partner during flight | Long Battery Life: Bluetooth audio transmitter has a 300mAh battery capacity, which lasts up to 14 hours in TX mode and 11 hours in RX mode, and takes only 2.5H to fully charge | Wide Compatibility：SONRU airplane bluetooth transmitter adapter comes with dual 3.5mm airplane headphone adapters, which are compatible with any aircraft audio output. It can also work seamlessly with devices that output audio via AUX, such as PC, tablets, fitness equipment, etc. It also supports a variety of Bluetooth headphones or earbuds, including AirPods Pro 2