Specification: Item Type: Electric Bottle Brush Material: PP + sponge Voltage: 5V / 2A Power: 4W Battery: Lithium battery 1800mah (included) Waterproof Rating: IP65 Working Time: 3-4 hours Maximum Withstand Temperature: Handle 80 Weight: Approx. 248g/8.75oz Package List:1 x Host 1 x Sponge Brush1 x USB Cable Features Strong Power: Strong torsion motor to enhance the cleaning power, form strong rotating water flow, remove stubborn stains. Multipurpose: The brush can be used to clean baby bottle, water cup, coffee mug, wineglass, sports bottles, beverage cup, etc. Nonslip Handle: Comfortable handle, anti skid, easy to handle, easy to clean, easy to remove stains on the bottom of the bottle. Safe Material: Cleaning brush has been strictly tested, foodgrade material, BPA free, environmentally friendly, tasteless, durable and safer. Easy Storage: Equipped with lanyard storage, sponge brush can drain more thoroughly, convenient to store, simple and fashionable.