I have found this mike to be really good, compared to what I was using before. It didn’t feedback once during the show, and seems to be very well made. If I needed another wireless mike I would get another of these. I really can’t say anything bad about it, and intend to use it from now on. I can’t say who well the batteries will last, as I’ve only used it 4 times so far, but that’s no issue, as it’s only an AA size battery, so I just put a packet of them in the box I keep the mike in.