This is probably one of the best sounding battery powered units available. The system has a solid build and the 200 Watts RMS power is amazing. Lots of connectors, and a clean professional sound. But the Mics are a big disappointment. They cut in and out and I have not been able to get this issue resolved with Denon. I have tried their recommendations including replacing the Mic but no luck as of yet. It appears that the issue is a known one, and that the Denon Envoi had Wireless Mic issues as well. Please post any solutions to the wireless Muc problems. I would still recommend the speaker if you have other Mic solutions, as I do.