Review on Zacro Portable Electric Air Pump 6000mAh Battery | Quick Inflation & Deflation | USB/12V Outlet Powered | 3 Nozzles for Mattresses, Lounger Sofas, Pool Floats, Airbeds by Jamie Miller

About the size of a beer can, but on inflatable boats it's a real number! I'll go across the river parking lot, fill up all the floats and just try to drain the battery down to storage capacity! I'd say it's a "noisy little hair dryer" but it takes its job seriously and isn't as loud as most and does less. Note that attachments are pretty handy. I didn't realize it before, but they match everything I've come across and can be manipulated to match things that shouldn't have been populated. In addition, they are each half twisted from the outside to the outside (inflate) and from the inside to the inside (deflate).