Function: 16 Frequency VibrationColor: BlueSize: 15.7 * 3.0 cm/6.3  * 1.1 inchNet Weight: 109 g/0.24 lb/3.8 ozPower: Lithium batteryMaterial: ABS + SiliconePackage: Color BoxFurther: WaterproofPackage Size: 18.5*7.4*4.0 CM