Function: 2 Speeds 9 Frequency Vibration Color: Black Size: 12 * 4 cm/4.7" * 1.6" Net Weight: 105 g/0.23 lb/3.7 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: IPX7 Waterproof, USB Magnetic Charging Package Size: 17x11.65x5.15cm