- Whisper-quiet keys for undisturbed and relaxed working ,- Separate on/off switch allows for energy-saving use of the mouse ,- Storable USB receiver can be transported inside the housing to save space - Connection: USB-A Plug ,- Connection: Wireless ,- Model: Compact Mouse ,- Number of Mouse Buttons: 3 Buttons incl. Scroll Wheel ,- Scroll Function: Scroll Wheel ,- Sensors: Optical ,- Width x Depth x Height: 4.6 x 3.2 x 7,9 cm ,- Resolution: 1200 dpi ,- Colour: Anthracite 2 years legal warranty only