Function: 10 Frequency VibrationColor: Black/Purple/GoldenSize: 9.2 * 1.8 cm/3.6  * 0.7 inchNet Weight: 26 g/0.05 lb/0.9 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: OPP BagFurther: Waterproof