Specification: Material: ABS &amp; Rubber Color: Blue Output: 2.5L/Min Voltage: 3.7V Power: 25W Battery: 2200mah lithium battery Hose: 1.5cm diameter, 2m length Cable Length: 2m Water Temperature: no more than 45℃ Package Size: 30.5 * 28 * 7cm / 12.01 * 11.02 * 2.76in Package Weight: 900g / 31.75oz Package List: 1 * Pump 2 * Showerhead 1 * USB charging line 1 * Holder 1 * Hook 1 * Suction cup 1 * Hose Instructions: 1. Prepare a 5V 2A charger, charge the shower battery through USB interface, and then use it. 2. Connect the water pipes and accessories, prepare a bucket of clean water in advance (the water temperature should not exceed 45 ℃), and put the water pump into the bucket (it must be put into the water instead of empty burning) Adjust the height of the nozzle and fix it in a suitable position. Press the start switch of the water pump and turn on the power directly to drive the water pump. matters needing attention: 1. You can not use hot water. The water temperature is below 45 degrees. Use after the first full charge. After filling, you need to screw the cover and then put it into the water. You can not burn it empty. After use, throw clean water, wipe clean and do a good job of maintenance.