Function: 11 Frequency Vibration Color: Black Size: 12 * 3 cm/4.7  * 1.1 inch Net Weight: 181 g/0.4 lb/6.3 oz Power: Lithium battery/650mAh Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size: 18.7*18.4*7.2 CM