Feature:1. No need to use batteries, easy to clean, small size, light weight, easy to carry, and provide you with a very simple way to drink water.2. Easy to use, just small pump can be fixed in the bottle.Onebutton operation, even for children and the elderly have no trouble.3. Suitable for indoor and outdoor portable equipment, such as office, home, kitchen, camping, picnic and other activities.4. Made of highquality materials, foodgrade silicone tube, highdensity ABS plastic, nontoxic, tasteless, sturdy and durable, and can be used safely in the water dispenser.5. Included USB cable for easy charging, builtin rechargeable lithium battery, strong compatibility, which is vey convenient for your using and operating.Specification:Item Type: Electric Water PumpMaterial: Plastic + Silicone +ABSColor: WhiteProduct Size: Approx.140x135mm / 5.51x5.31inBottom Diameter: Approx.68mm / 2.68inWeight: Approx. 288g / 10.2ozControl Method: USB charging, one key pressBattery Type: Rechargeable lithium battery (built-in battery)Battery Model: 18650Battery Capacity: 1200mAhPower: 5WVoltage: 4VFrequency: 50Hz.Package List:1 x Electric Water Pump1 x Silicone Pumping Pipe1 x USB Charging Cable1 x English ManualNote:1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.