Specifications: - Working Voltage: DC 3.7V - Color: White + Black - Hose Length: 4.7 inch - Soft Hose Length: 21.7 inch - Dimensions: 7.5 x 13cm / 2.95 x 5.12’’ (envy) - Material: food grade silicone, 304 stainless steel, AB - Charging: Micro USB charging cable, recharge in 3-4 hours < p> NOTE: 1. Do not use this product to pump alcohol, other irritating liquids such as oil or hot water over 55°C. 2. Do not immerse the product in water to clean it. 3. Charge the product for 4-5 hours before first use.