Mouse fara fir Trust Siero Silent Click Wireless Mouse Specifications General Height of main product (in mm) 38 mm Width of main product (in mm) 57 mm Depth of main product (in mm) 96 mm Total weight 85 g Formfactor standard Ergonomic design no Connectivity Connection type wireless Bluetooth no Wireless protocols RF 2.4GHz Wireless range 8 m Receiver included yes USB version 2.0 Connector type USB Features Silent click yes Software no USB receiver storable yes DPI adjustable yes Power saving yes Gaming Designed for gaming no Lighting Lights no Power Batteries included yes Battery life (months) 6 month Rechargeable battery no Number of batteries 1 Wireless transmission power (mW) 1 mW Battery type (AA, AAA, etc.) AA Input Power source battery Sensor DPI 1000, 1600, 2400 Max. DPI 2400 dpi Sensor technology optical Compatibility Compatible Device Types pc, laptop Compatible Software Platforms Mac OS, Windows, Chrome OS Control Grip type palm Horizontal scrolling no Controls dpi, on/off, left, right Number of buttons 4 DPI button yes On/off button yes Programmable buttons no Adjustable weight no Suitable surface non-reflective flat surface Left-right handed use right-handed, left-handed Scroll wheel yes Trackball no