Function: 9 Frequency Vibration Color: Green/Black Size: 7.9 * 5.4 * 2.7 cm/3.1" * 2.1" * 1.0" Net Weight: 46.5 g/0.1 lb/1.6 oz Power: Lithium battery/3.7V/90mAh Material: ABS + Silicone Package: Color Box Further: Waterproof/Wireless Package Size:...