Function: 10 Frequency Vibration & KnockingColor: BlackSize: 13.2 * 14.0 cm/5.20 * 5.52 inchInsert Length:10.5 cm/4.14 inchRing Dia:5.3 cm/2.09 inchNet Weight: 176 g/0.39 lb/6.21 ozPower: Lithium batteryMaterial: ABSPackage: Color BoxFurther: Waterproof/APP SmartPackage: 13.5 * 8 * 4.5 CM