Function: 9 Frequency Vibration Color: Black/Green Size: 12.2 * 3.8 cm/4.8  * 1.5 inch Net Weight: 91.3 g/0.2 lb/3.2 oz Power: Lithium battery/3.7V/240mAh Material: ABS + Silicone Package: Color Box Further: Waterproof/Wireless Package Size: 17 x 11.65 x 5.15 CM