Function: 8 Frequency VibrationColor: BlueSize: 22 * 4 cm/8.7" * 1.6"Net Weight: 141 g/0.31 lb/4.97 ozPower: lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: Waterproof, USB Recharge, Heating, APP ControlPackage Size: 25*10*4.8 CM