Function: 10 Frequency VibrationColor: SilverSize: 31 * 5.4 cm/12.2" * 2.1"Net Weight: 338 g/0.74 lb/11.9 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: Waterproof, Strong VibrationPackage Size: 32.2*7.5*7.2 CM