I have now for almost 2 weeks and have to say the wireless Microfones, I'm thrilled! The sound quality is actually much better, I have to add my voice to previous speakers. Also, I find that batteries are much more practical in the microphones, as batteries. First you can get started right away and not have to charge it for a long time - so spontaneous SingStar fun is possible. I also have the microphones, as already mentioned, for almost 2 weeks. Of these almost daily keep in use and the first batteries still. Thus, they are also energy saving, what the purse is also beneficial. I do not think that cordless microphones that endure for so long. So Top !!! Recommended !!