Rechargeable Wireless Mouse: Built-in high-quality rechargeable battery, lasts up to 500 hours of use after a single full charge, easy to recharge via micro USB cable (about 2 hours from full charge) Say goodbye to traditional AAA disposable batteries. 2.4GHz Wireless Data Transfer: NPHIC’s advanced 2.4G wireless technology supports stable connection and accurate tracking with a working distance of up to 10 meters away. Play and Plug. 3 adjustable DPI levels (800, 1200, 1600) change the mouse speed freely, eliminating lag and dropout, can be applied for home gaming. 6 effective buttons: Besides the left and right buttons, the product also includes a DPI button, a scroll wheel and two side buttons. The addition of side buttons makes it easier for you to flip pages when browsing the web. Auto-sleep and power-saving: The laptop mouse automatically goes into sleep mode after 3 minutes of inactivity to save energy. It is reactivated by a slight movement. Wide Compatibility and Worry-Free