Wireless In-Ear Headphones Car Bluetooth Receiver Adapter Transmitter Connect to headphones. It will not disturb people when watching movies late at night. Connect your car stereo so that your car journey is not boring. You can also connect to your home stereo set to play. Connect the 3,5 mm audio input. You can also play audio without function (used in TX mode) Long battery life, distance of 10 meters, and the power indicator shows the status of the device. The elbow design does not take up space, and the operation is simple and easy to use. Specifications: Product Name: AUX Audio Transmitter Receiver Output interface: 3,5 mm sound Version: 5.0 Transmission distance: 10 meters Transmission Rate: 4Mbps Operating Frequency: 2,4 MHz Battery Capacity: 140Amh Charging time: 1h Usage time: 4h The package includes: 1 piece receiver 1 piece charging cable 1 piece 3.5mm audio head 1 piece instruction