Function: 12 Frequency Vibration 5 Speeds Color: Green + Black Size: 20 * 4.2 cm/7.8" * 1.6" Net Weight: 187 g/0.4 lb/6.5 oz Power: Lithium battery Material: ABS + Silicone Package: Color Box Further: Waterproof Package Size: 23*7.3*5 CM