? 2.4GHz wireless technology provides powerful and reliable connection, effective up to 10 meters of range. ? 3-Level adjustable DPI (800/1200/1600 DPI), freely to satisfy daily work. ? Ergonomic design, lightweight and convenient for carrying or traveling. ? Made of quality material, durable and practical in use. ? Silent click mouse with classic design offers your hand maximum support and comfort. Silent button reduces 90% noises, which makes it an ideal wireless mouse for office, conference room, cafe, library, bedroom, help you concentrate on your work, study without disturbing others besides you. 1.2.4GHz wireless technology provides powerful and reliable connection, effective up to 10 meters of range. 2.3-Level adjustable DPI (800/1200/1600 DPI), freely to satisfy daily work. 3.Ergonomic design, lightweight and convenient for carrying or traveling.