Function: 9 Frequency VibrationColor: Black/RoseSize: 20.5 * 2.2 cm/4.5" * 1.1"Net Weight: 66 g/0.14 lb/2.3 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: Waterproof/Wireless/APP/BentablePackage Size: 12.5*7*3.5 CM