In all my years of making music and owning equipment, I've never had a dB meter. I saw a guy in Venezuela using it in '78. I saw one on C/list for about $15.00 and looked for it online and I saw one here at Revain for such a low price I told myself. The male. i need one of them See. I thought they were more expensive. Well I've seen some that were bigger and I thought. I'll try this and see what it does. As far as I know, this works very well. However, I have to learn how to deal with it.