Dr. Brown's Electric Silicone Brush Set delivers a powerful clean for baby bottles and accessories. The set includes a motorized 360° spinning handle, two interchangeable brush heads, and a straw brush to quickly and effectively clean bottles, sippy cups, pump parts, and more. The handle features two speeds – press the power button once for a gentler yet thorough clean, press twice for a more powerful, deeper clean. Attach the bottle brush head for cleaning inside and all-around bottles. Attach the nipple/spout brush head to clean nipples and sippy spouts. The included straw brush cleans inside straws and reaches any other crevices (straw brush does not attach to electric handle). The handle is USB rechargeable. The indicator light will turn red when battery is low, and green once it’s fully charged. The handle is comfortable and easy to hold and includes a suction cup base for convenient upright storage. The brush heads are made with soft yet durable silicone that won’t scratch and are easy to clean. The silicone brush heads and straw brush are dishwasher (top rack) and electric sterilizer safe. Do not microwave straw brush. Brush handle contains Li-ion Battery: 3.7V/1200mAh.