Features: Bluetooth-compatible 5.0, signal transfer is faster, stable and in higher quality. 2 in 1 bluetooth-compatible adapter with bluetooth-compatible receive and bluetooth-compatible transmit. for Android/IOS phone systemand all bluetooth-compatible audio devices for TV, Speaker, PC, etc. High-fidelity Stereo Sound quality debugged by professional tuner. You can enjoy TV show with your Bluetooth-compatible headphones and to avoid disturbing others. Enables your PC or laptop to wirelessly connect with bluetooth-enabled devices, like Smartphones, tablets, keyboards, mice, speakers, printers, headsets and more. Specifications: Material:ABS Size: Approx.5.8x3x1.15cm/2.28x1.18x0.45inch Color:Black Function: Bluetooth-compatible wireless audio reception Built-in noise reduction HIFI sound quality Transmission signal distance: 10m Fully for automatic matching Input interface: 3.5mm No driver required, plug and for play Battery capacity: 240mAh Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Wireless Receiver Transmitter 1x User Manual 1x Aux Audio for Head 1x USB Power Cable