【Ergonomic Design】 The top cover has an arc-shaped design and fits perfectly in the palm of your hand, so you don't get tired even if you use it for a long time. The USB receiver can be easily stored in the mouse slot. [2.4G wireless connection] No driver installation is required, and the connection is completed by plugging the included connection terminal into the USB connection port of the computer. It is a wireless type that can be used without worrying about cables. Stable data communication is possible over a wide range with a communication range of 10 m radius. [Silent click] The improved stability of the click reduces noise and improves your concentration while working or studying, as well as creating a comfortable work space without disturbing the people around you. The button has a lifespan of 3 million clicks, so you can rest assured that you will be able to use it for a long time. 【Wide Compatibility & 3-Level DPI】 Compatible with Windows XP, Vista, 7/8/10 and Mac OS. The DPI can be freely adjusted in three modes (1000-1200-1600), and you can set the cursor movement speed to your own convenient speed. [Power saving mode] To save battery life, it will automatically enter sleep mode after 10 minutes of inactivity.