Function: 10 Frequency VibrationColor: Black/SilverSize: 10.2 * 1.9 cm/4.0" * 0.7"Net Weight: 31 g/0.06 lb/1.0 ozPower: Lithium batteryMaterial: ABS Package: Color BoxFurther: WaterproofPackage Size: 13.5*3*8.5 CM