1. It is a wireless demonstrator with built-in lithium battery, display digital tube, vibration motor, plus2. Somatic mouse functions.3. This product replaces the laser-transmitter that may hurt the 's eyes, by using4. 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 receiverColor: Space Graymaterial: plasticPackage Contents:1 x air mouse1 x type-c ReceiverOnly 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.