Function: 7 Frequency Vibration Color: Black Size: 10 * 3 cm/3.9" * 1.2" Net Weight: 68 g/0.15 lb/2.4 oz Power: AAA Material: ABS + Silicone Package: Color Box Further: IPX7 Waterproof, USB Magnetic Charging Package Size: 12.5 x 7 x 3.9 cm