Product specifications Electric flow: 2.5A Water flow: 4-4.5L/min Battery capacity: 2200mAh Battery voltage: 3.7V Charging way: USB output 5V / 1.2A Charging time: 3-5H (depends on your charger) Color: blue, orange 1. COMPACT CAMP SHOWER -The kit consists of a powerful shower pump, a sensitive shower head, a suction cap, an S-hook and the 2M hose, and a rechargeable battery that ensures portability and flexibility during use 2.Upgraded Version: Come with one detachable USB rechargeable battery (2200mAH ) that are separate from the pump. External on/off function, an improvement over the previous design. The batteries do not need to be immersed in water, which can protect the life of the batteries and increase their service life minutes, two for up to 90-120 minutes that you can constantly shower happily up to 4L/min (1 gal/min) provides ideal and strong water pressure to make bathing easier. 4.Simple Assembly and Operation: Simply submerge the pump fully in your bucket/tub of water and turn on the motor. It pumps water from the bucket into a steady, gentle shower flow, giving you a nice flowing shower. 5.LIGHTWEIGHT AND PORTABLE: The shower is very light and portable, easy to put in luggage, backpack or trunk . The compact design will delight anyone camping.