the car washing gun with big lithium battery charge time is 3 hours, and power is 20V. Multifunctional nozzle with 3 ues possibles,30°sector, bundle flushing, mist shower. and there are 3 water supply modes to solve highlevel car wash problems. Also it has strong water pressure, cleaning at a high range of 6-7 meters is not a problem. The outlet pressure is 3-5 times that of the top. If you are interested,my WhatsAPP is +8617513080708