Mice & Trackballs DELUX M618DB Wirele Ergonomic Mouse Rainbow Led Light RGB light, upgraded texture,a sense of fashion and futurism Dual Connection Build up the connection via BT4.0 and USB receiver, stable connection, plug and play. And easy switch the connection mode between 2.4G wirele and BT by clicking the little dot in the mouse bottom. New Ergo Holding Gesture-57 Just hold the DELUX vertical mouse with a scientific angle-57 degree, rest your hand in the mouse and keep your forearm muscle under natural position. Compared with the tradition-shaped mouse, reduce arm discomfort and hand stiffne. Rechargeable Built-in Battery With a 500mAh rechargeable battery, one full charge for a week using(8 hours/day), and more with saving sleep mode, it will enter into the sleep mode when not in use; and come with 1.4m type C cable. High Precision, Le Movement, Le Fatigue Compared with the traditional mouse normally designed with 1000DPI, with 4000DPI high precision tracking engine, le movement for the same tracking, reduce hands fatigue. Specification Model: DELUX M618DB Wirele Vertical MouseDPI(shift on the fly): 800-1200 (Default)-1600-2400-4000DPIDimension: 4.52 3.182.96 inches/115* 80.7 * 75.2 mmWeight: 115g/0.25lbNumber of keys: 6Color: BlackConnection: 2.4G RF Wirele with USB Receiver and BT4.0Battery: 500mAh Li-polymer batteryPolling Rate: 125HzDevice Compatibility: PC, Laptop, Computer, DesktopSystem Compatibility: Windows XP /7/8/10