Wide Compatibility: Via a 3.5mm AUX port, this Bluetooth 5.2 adapter effortlessly adds Bluetooth connectivity to car audio systems, home stereos, speakers, wired headphones, and more. Plug-and-Play: The Bluetooth transmitter/receiver supports plug-and-play setup for hassle-free configuration. Clear LED status indicators provide instant visibility of connection status. Dual-Mode Dual-Connection: Supports both transmitter and receiver modes simultaneously. Transmit mode connects two headphones at once, while receiver mode pairs with two smartphones. Low-Latency APTX: Built-in premium chip delivers lossless audio, low latency, and high compatibility. Supports aptX Adaptive, aptX HD, aptX LL, aptX, and SBC codecs for exceptional sound quality and minimal delay. Extended Standby: Over 20 hours of battery life in Bluetooth receiver mode and over 12 hours in transmitter mode. Supports charging while in use, eliminating battery anxiety entirely. Color: As Shown Material: ABS Package Contents: 1 x Bluetooth transmitter/receiver 1 x Audio cable 1 x Charging cable