Features: 2.4GHz wireless transmission technology allows to stably connect to desktop PC and laptops, etc. 800DPI, 1200DPI, 1600DPI adjustment, ensures to position the object quickly during using to meet different needs of the display screens with different resolution. Specially designed for people who works on computer for a long time to prevent mouse hand. Adopts the ergonomic design, to reduce fatigue caused from long-term use effectively. Silent design, won't affect others when you use it, and the slim design for portable use and fashion. The effective wireless transmission distance is about 10m, providing anti-interference stable connection within the effective transmission distance. Low consumption technology, long battery life, long standby time, to avoid the trouble of frequent battery replacement. Available for 1-2 months at full charge.