This 2-in-1 Bluetooth Audio Transmitter Receiver combines a Bluetooth transmitter and receiver with a 3.5mm auxiliary jack. In transmission mode, it helps you send audio from devices like TVs, PCs, and airplane entertainment to your Bluetooth headphones, earbuds, or speakers. In reception mode, it lets you connect your smartphone to wired speakers or earphones wirelessly via Bluetooth.

The device is equipped with an upgraded Bluetooth 5.3 chipset, providing stable audio and CD-quality sound with True HD and APTX low latency. This means you can watch videos without lag while watching movies. Note that low latency requires support from Bluetooth headsets or speakers, and it's not available in reception mode.

This Bluetooth adapter also features a dual-link function, making it perfect for dual auxiliary entertainment setups on planes. You can connect two wireless headphones to share music and movies with others.

Using the device is easy: make sure your Bluetooth-enabled devices are in pairing mode, then slide the switch to transmission mode. Press and hold the power button for three seconds, place your Bluetooth devices near the adapter, and double-press the power button to enter pairing mode. Typically, pairing will be complete within 10 seconds.

The device has a long battery life, with a charging time of about two hours, an RX service time of at least 20 hours, and a TX service time of 12 hours when fully charged. It can also be used while charging, making it very convenient.

This Bluetooth audio transmitter is compatible with a wide range of devices, including TVs, PCs, CD players, iPods, laptops, tablets, and MP3/MP4 players.