Tests of gadgets and other stuff

Gentlemen, it so happened that I got access to all the devices and products sold in the store omaygadzhet.ru
Hence the announcement - if anyone has a need or interest in testing something that is presented there, there is an idea about testing technology, etc. - write to me and I will test interesting devices for you and post reports here!

P.S. There is a lot of portable speakers (on the built-in battery, such as for phones and players). Half looks sluggish, the second seems to be more or less of high quality, but they all sound loud, so maybe we will test them with a bunch? Does anyone have an idea, by what method to do it (except for the banal measurement with a sound level meter)?

P.S. Type columns such