Silent Clickless Wireless Gaming Mouse - Quiet Optical Ergonomic USB Mice (Black) Noiseless,Quietest~Silent design make you work or play in a quiet environment,perfect for use at home,office or on-the-go Auto Power Off (APO)~Smart saving power sleep mode.You only need to click it to enter working mode as the mouse switched off automatically Plug and Play~No need to install driver,easy to use 8M-15M working distance~2.4G frequency technology.Unique focusing ability can enhance the adaptability of optical sensor Ergonomic Design~Material finish is soft and comfortable.Build quality is decent,no rattle when shaking