... slide style CE,ROHS,FCC bluetooth and laser for option 2.4Ghz Wireless bluetooth Laser Slide Mouse User Manual 1-website button ... adjust CPI buttonFeatures:operating frequency is 2.4ghz with laser tracking.battery requirement 1.5v AAA 2 batteries,pls pay attention to ... manufacture,this modle we have 2 different mould to fit different market.one is normal optical wireless mouse for lower market , ...