Function: 4 Frequency Vibration With 3 Speeds Color: Black Size: 12.4 * 2.9 cm/4.8" * 1.1" Insert Length: 9.4 cm/3.7" Net Weight: 110 g/0.24 lb/3.8 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof/Wireless Package...