Novelty Silver 3D Desktop Laptop Computer USB Optical Cool Fan Mouse for hot days! This Fan USB Optical Mouse is the best summer computer accessory you can buy, features a fashionable ergonomic design, take fan function in the mouse, more comfortable for using! 100% Brand New Silver 3D Desktop Laptop Computer USB Optical Cool Fan Mouse This Fan USB Optical Mouse is the best summer computer accessory you can buy, features a fashionable ergonomic design, combining a cooling fan which makes itself best for summer Take fan function in the Silver Computer Mouse, more comfortable for using 800DPI resolution, 3D Optical Mouse give you precise movent Powered by USB port and need no external power supply Plug and play, no driver required 3D buttons: Two buttons and one scroll wheel Flash light for scroll wheel Cool Mouse with ON/OFF switch Supports Windows XP, ME, 2000, 98 (not suitable for Vista) Working voltage: +5V DC 10% Key bounce: 65±10g Key using time: > 10 Millions Key tracking: 0.8±0.2mm Resolution: 800DPI Power: 1W Wind speed: 7000/ Minute/Turn Temperature: 0°C ~45°C Humidity: 20%~90% Current: ≤15mA Cable Length: approx.137cm Dimension: 113 x 60 x 35mm Weight: 170g