- Ideal for use with notebooks ,- 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 ,- Optical sensor with high resistance to wear ,- Radio range: up to 8 metres , ,System Requirements: ,- Operating system: Windows 10/8/7/Vista and Mac OS X 10.5 (Leopard) or higher