1:2.4g wireless mouse , 2:build in mini receiver, 3:10m oprating range 4:mini size 5:OEM service offered Product specification:1 ... ,operation distance is up to 10 meters.2.built-in mouse memory,no recoding is needed after battery replacement.3.Intelligent ... ,please check battery power and replace it as necessary4.The mouse will shut off automatically and enter sleeping mode for saving ...