Function: 7 Frequency VibrationColor: PurpleSize: 20 * 4.0 cm/7.9" * 1.6"Insert Length: 10 cm/3.9Net Weight: 138 g/0.3 lb/4.9 ozPower: lithium batteryMaterial: ABS + SiliconePackage: OPP BagFurther: Waterproof, magnetic charging