Starmax SM-8016 Rechargeable Carboy Water PumpTechnical Information: POWER: 4 WATT VOLTAGE: 5V DCBattery Capacity: 1200 material: PP-SiliconSteel Quality Type: 304 StainlessPackage Contents:1 Automatic Water Pump Body2 Stainless Steel Pump Tip3 Micro USB Charge CableUser Manual:1. Insert the steel cap you took out of the box into the gap in the water pump body.2. You can start the operation of the machine by clicking the button on the pump.3. To stop, you can stop by pressing the same button again. Note: Color Delivery is Provided According to Stock Status. Starmax Rechargeable Carboy Water Pump