FeaturesWireless connectivity via USB dongleBattery life: up to 12 monthsOptical mouse3 buttons1000 DPIThis Rapoo X1800S Wireless Keyboard & Mouse Set transmits with the proven 2.4 GHz standard, which offers a range of up to 10 m with a 360° coverage. The classic design offers comfort even during long periods of writing and increases comfort. the look of any desktop. The keyboard\'s multimedia keys make it easy to control everyday applications. The high resolution 1000 DPI optical sensor makes surfing and clicking a pleasure. In addition, Rapoo\'s power-saving technologies provide up to 12 months of battery life. Reliable 2.4 GHz wireless connection carefree: the proven Advanced 2, 4 GHz standard offers you a range of up to 10 m and 360°. High resolution 1000 DPI sensor Enjoy total control: With the 1000 DPI invisible tracking engine, you can control the mouse pointer gently and precisely. Up to 12 months battery life; low energy consumption: Rapoo\'s energy-saving technologies combined with the on/off switch means that you can use this mouse continuously for up to 12 months.