LIGHT and ULTRA-THIN : Slim and light design, only 0.6 in thick, 0.1 lbs weight. Made of ABS+PC material, it doesn’t occupy USB port when used. The lightweight and portable designing is the first choice for travel. LOW DECIBEL BUTTON : Low decibel left and right mouse buttons, Suitable for libraries, conference rooms, coffee shops and other occasions. ENERGE SAVING and ENVIRONMENT-FRIENDLY : The mouse has its own power switch and enter sleep mode automatically. It is the most safe and stable lithium polymer battery, work over 3 weeks after one fully charge , can be charged more than hundred times. WIDE COMPATIBILITY : Compatible with the devices,that have 3.0 Version Bluetooth or higher.Like PC,laptop,tablet.But Not compatible with iphone or ipad. EASY to OPERATE : There just need three steps to connect devices that support bluetooth mouse.And more clear indicator.There has power signal light, pairing signal light, DPI signal light, low battery signal light and charging signal light. Finally, this mouse can be used normally when it charging.