Simply insert the hose into the H3 valve on your inflatable, select your desired PSI and press the “ON” button. The iPUMP has a 2-stage motor that will shut off automatically once it has reached your requested PSI. The iPUMP will inflate any HO Sports iSUP in about 10 minutes with zero physical effort. With the iPUMP you can save your energy for paddling or playing rather than wearing yourself out by manually pumping up your inflatable with its hand pump. The iPUMP can be powered by the cigarette lighter in your car or boat. Get yourself an iPUMP and save your energy for the water