upgraded water pump will make your life more intelligent and convenient! Features: [SAFE MATERIAL] Made of high-quality PP and 304 stainless steels together with a food-grade silicone tube, this water pump is durable, reliable and safe, perfect for both indoor and outdoor use. [LONG ENDURANCE] With built-in 1200MA 18650 lithium battery, you can recharge it with the included USB cable, and it can be used for 1-2 months or around 4-6 bottles of 5-gallon water once fully charged. No need to charge every day. [ONE BUTTON SWITCH] The water bottle pump is quite easy to use. Simply press the button at the top and the water will flow out. And there is a detailed user manual in the package, totally hassle free even for kids and the elders.  [COMPACT & PORTABLE] Measuring around 14*8cm / 5.5*3.1in and weighing only 250g / 8.82oz, this water pump is convenient to carry around for camping, hiking, traveling and other outdoor activities. [REMOVABLE INLET TUBE] The stainless steel outlet pipe and silicone inlet tube can be removed for easy cleanup. And noise-free design brings you a better use experience. Specification -Item Name: Water Pump -Material: PP/ Stainless Steel / Silicone -Color: Black / White (optional) -Size: 14*8cm / 5.5*3.1in -G.W.: 250g / 8.82oz -Battery capacity: 1200MA 18650 Lithium Battery -Rated Power: 4W -Rated Voltage: 5V -Rated Frequency: 50Hz -Applicable bottle: 4.5-18.9L Package List: 1 * Water pump 1 * Outlet pipe 1 * Inlet tube 1 * English user manual 1 * Micro-USB charging cable Notes: 1. Size information is just for reference only, please allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks. 2. Item color displayed in photos may be showing slightly different on your monitor since monitors are not calibrated the same.