Review on Quick-Fill Electric Air Pump, 4000mAh Rechargeable Air Mattress Pump by Dr.meter - Perfect for Outdoor Camping, Inflatable Couch Bed, Boat, Pool Toys, Snow Tube, and Swimming Rings - USB Powered by Sandra Getchu

This is a good, small and reasonable pump for inflating whatever you need this device for, but be aware that this pump will not put any pressure on you inflatable object. The ad also correctly states that this is for puffing only. For example, if you want to use it to inflate an inflatable kayak (which is why I bought this pump) it can make your life easier by pumping air into the kayak, but you must have a hand pump or other more powerful pump to add pressure and get the right pressure. I don't have a pressure gauge to measure the actual ultimate pressure I could reach with this pump, but I'd say it doesn't exceed 1.1 atm (0.1 more than ambient pressure). After inflating my kayak with this pump, my single seater kayak buckles almost under its own weight. Also, be prepared that you may need to purchase a different set of valve adapters, but understandably this depends on the valve you are using this pump on.