... &Rouhs control 2.Effective distance:20M 3.Multifunctional mouse 4.Lowest price. Wireless computer optical mouse 1,Type: 9304 2.4G wireless Mouse2 ... No.7 battery——3V7,Low voltage directions: Automatic sleep8,Button : 5 buttons9,mini Receptor version:USB2.010,Mouse size:95*65*36mm11, Mouse net ...