2-in-1 Bluetooth Audio Transmitter Receiver: Wireless adapter combines bluetooth transmitter and receiver with 3.5mm auxiliary jack. In TX mode, helps you transmit audio from devices like TVs, PCs, and airplane entertainment to your bluetooth headphones, earbuds, or speakers. In RX mode, lets you connect your smartphone to wired speakers or earphones wirelessly from bluetooth HD & APTX Low Latency: Equipped with upgraded bluetooth 5.3 chipset, so the bluetooth transceiver can provide stable audio and CD quality, enjoy true HD sound quality. With the low latency feature, you can watch videos without any lag while watching movies. Tips: Low latency requires the support of bluetooth headsets or speakers. Low latency does not support RX mode Dual Link Function: The bluetooth adapter is the solution for dual auxiliary entertainment setup on the plane. You can also connect two wireless headphones to share your music and movies with others Easy to Use: Make Sure that your bluetoot