Ergonomic design with glossy surface, comfortable operating experience Optical laser allows for quick response, precise movement and smooth tracking Bluetooth 3.0 connection, transmission distance up to 10 meters With Bluetooth pairing button + On/off switch on the bottom Adjustable resolution: 1000/1400/1600 dpi Automatic sleep mode, power saving Powered by 2 AAA batteries (not included) Slim and lightweight, easy to carry Specification: Bluetooth version: 3.0 Wi-Fi range: 10m Resolution: 1000/1400/1600 dpi (adjustable) Frequency: 2402MHz-2480MHz Max tracking speed: 14 inch/second Size: 11 x 57 x 20mm Weight: 65g Package included: 1 x Ultra-thin 1600 DPI Optical Wireless Bluetooth 3.0 Mouse