Function: 2 * 9 Frequency Vibration Color: Black Size: 9.1 * 3.1 cm/3.6" * 1.2" Net Weight: 56.7 g/0.13 lb/2 oz Power: Lithium battery/3.7V/140mAh Material: ABS + Silicone Package: Color Box Further: Waterproof/Magnetic charging/Wireless Package Size: 17x 11.65x...