Function: 16 Frequency VibrationColor: BlackSize: 15.3 * 2.0 cm/6.0  * 0.78 inchNet Weight: 69 g/0.15 lb/2.4 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: WaterproofPackage Size: 18.5*7.4*4.0 CM