Function: 12 Frequency Vibration Color: Yellow + White Size: 13.1 * 2.9 cm/5.1" * 1.1" Net Weight: 106 g/0.23 lb/3.7 oz Power: Lithium battery/3.7V/500 mAh Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size: 16x10x7.5 cm