This shower set includes a rechargeable 2200mAh lithium battery, meaning it can provide up to 60 minutes of continuous use on a single charge. You can easily recharge it through your phone charger, laptop's USB output, or car's USB output. The consistent 0.9 gal/min flow rate means you'll have plenty of water pressure for a satisfying shower, and the multiple-use design means you can also use it for washing dishes or clothes. When you're finished, simply collapse the shower unit for easy storage and transport. Whether you're enjoying a weekend camping trip or spending time at the beach