Function: 10 Frequency VibrationColor: BlackSize: 20.3 * 3.6 cm/8.0" * 1.4"Net Weight: 181 g/0.4 lb/6.4 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: WaterproofPackage Size: 21*14.5*4 CM