Longer transmission distance and clearer sound. One-click connection:Easy to connect, automatically connects when powered on, and has strong compatibility. Ultra-long usage time:After a full charge, it can be used for over 20 hours. No more battery anxiety, making it more enjoyable to use. Built-in rechargeable battery:Charges via a Type-C port, which is convenient to use. Item Type:Wireless Systems Colour:Black Material:TPU+Plastic Package Contents: 2 x Microphone Transmitter 2 x Microphone Receiver 4 x Adapter 2 x Type C Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.