Embarrassingly loud - but easy!

Pleasant is also that, in the heat - has not even sweaty work with the air pump - where I usually go to the lake.

Is pleasant, that loose the battery enough to inflate a dinghy (290 cm) and the air also suck again. Aspirate (Why? For one thing, it looks really stupid of you to throw on the half-empty boat to squeeze the air out. On the other hand it can be better packaging, if it is completely "empty". And that is achieved (I ) just do not let out the naked air.
For two air mattresses, it was enough also - after the battery still was not empty.

What less beautiful or pretty stupid is: The volume is very uncomfortable (!). The surrounding bathers are still plenty annoyed thereby. While the stock split in those who are just annoyed and the (usually hand pumps be operated fathers) who are watching enviously as relaxed but a boat can be inflated.

I would also have liked a charge status indicator. Because even though it has still passed, I never know when "is end of the road" in the battery. So must the safe side but still the hand pump in the trunk.

Conclusion: Despite the two minuses strong buy recommendation!