Type: wireless mouseMouse size: mouse ( less than or equal to 100mm)Connection with computer: wirelessPhotoelectric resolution: 1600dpi (dpi)Number of keys: 4 (keys)Interface: USBWireless transmission frequency: 2.4GHzWhether to support ergonomics: supportAdjustable resolution: three levels and belowOperating distance: 10 (m)Working mode: photoelectricWheel direction: four-way rollerFeatures: Mini, SlimBattery: Rechargeable batterycolour: blackMaterial: ABSsize: 110x60x25mmPackage Contents: 1 * mouse1 * receiver1 * Charging CableOnly the above package content, other products are not included.Note: Light shooting 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.