Function: 10 Frequency VibrationColor: Black/SilverSize: 9.8 * 1.9 cm/3.8" * 0.7"Net Weight: 33 g/0.07 lb/1.1 ozPower: Lithium batteryMaterial: ABS Package: Color BoxFurther: WaterproofPackage Size: 13.5*3*8.5 CM