Function: 10 Frequency Vibration & RotationColor: BlackSize: 10.3 * 3.7 cm/4.06 * 1.46 inchInsert Length:6.5 cm/2.56 inchNet Weight: 57 g/0.13 lb/2.01 ozPower: Lithium batteryMaterial: ABSPackage: OPP BagFurther: Waterproof/APP Smart/Wireless