1. It is a wireless demonstrator with built-in lithium battery, display digital tube, vibration motor, plus 2. Somatic mouse functions. 3. This product replaces the laser-transmitter that may hurt the 's eyes, by using 4. Three digital scene modes, more convenient operation and more powerful functions. However, you will need to run computer-aided software using it. 5. Receiver anti-lost function, so you 't to unplug the USB receiver Color: Space Gray material: plastic Package Contents: 1 x air mouse 1 x type-c Receiver 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.