OMFORT AND PRECISION Intelligent power saving technology - Long battery life Non-slip rubberized ergonomic design No mouse pad required Wireless technology: 2.4 GHz Operating distance: up to 10 m Optical resolution: 800, 1200, 1600 DPI Power supply: AA battery x 1 pc (not included) Mouse: dimensions 115 x 61 x 35 mm, net weight 58 g (without battery)