Function: 10 Frequency VibrationColor: ClaretSize: 20.0 * 3.8 cm/7.88 * 1.50 inchInsert Length:12.0 cm/4.73 inchNet Weight: 140 g/0.31 lb/4.94 ozPower: Lithium batteryMaterial: SiliconePackage: OPP BagFurther: Waterproof/Rechargeable