Product specificationsElectric flow: 2.5AWater flow: 4-4.5 l / minBattery capacity: 2200mAhBattery voltage: 3.7 VCharging option: USB output 5V / 1.2ACharging time: 3-5H (depending on your charger)Color: blue1. COMPACT CAMP SHOWER -The kit consists of a powerful shower pump,a sensitive shower head,a suction cover,an S-hook and the 2M hose as well as a battery that ensures mobility and flexibility during use2. Upgraded version: Come with one detachable rechargeable USB 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 the life.3. Durable and powerful: We offer one battery,one of which can work for up to 45-60 minutes on a full charge,two for up to 90-120 minutes,so that you can shower happily up to 4 l / min (1 gal / min) provides ideal and strong water pressure to make bathing easier.4. Easy installation and operation: Simply immerse the pump completely in your bucket / tub of water and switch on the motor. It pumps water out of the bucket into an even,gentle shower flow and you get a nice flowing shower.5. LIGHT AND PORTABLE: The shower is very light and handy,can be easily stowed in luggage,backpack or trunk. The compact design will delight everyone when camping.