I really like these new wireless microphones, very light weight but great quality. Sound quality and battery life were excellent and the device was ready to use right out of the box. There is some feedback, but if you cover the mics with a lid, the feedback almost disappears. The receiver looks a bit flimsy and small so I try to be very careful with it and not hit it or drop it, but it works great and I'm hoping it doesn't break so they could probably make it look a bit sturdier So far, so good. I love that the mics charge themselves with the included USB charger so you don't have to hunt for anything. The battery lasts a long time, there is a charge indicator. I also like that the volume control and everything else is actually in the mic, so you don't have to worry about pressing buttons while holding the mic. I also like that it automatically finds the frequency for you so you don't have to search for the right frequency. And when you turn on the second mic, it will also automatically find another frequency, so don't worry about mic-to-mic interference. And you set it up once and the next time you just turn on the mics and they work. You don't have to set it up every time. And it all fits easily into the supplied case. It's been so much fun during my karaoke sessions and I no longer have to worry about tripping over cables. If you're not sure which mics to buy, order these and you won't regret it.