I was excited to try this setup out with my behringer mixer. Very simple to connect, basically plug and go. Both microphones connected and maintained a solid signal. Sound quality is clear at speaking voice levels. It lacked the desirable warmth for singing, but this would definitely be great option for those looking for cheap wireless option when it comes to non-musical use. Connected and used for a few songs at band practice and compared sound to Sennheiser e835 wired. Just didn't cut it. Where the Sennheiser excelled with loud vocals the behringer's failed to produce anything comparable. Vocals distorted when singing loudly and it was obvious I wouldn't be able to use these for shows. Switching out for one of the Shure wireless systems.
One little issue: After 7 month of usage USB receiver is fail: it support only 1 mic, not 2 at once. I send back to thomann warranity center mic set with USB reciever, and after 2 weeks i`ve got brand new set fully working. Many thanks to excellent Thomann warranty and customer service, very happy with this purchase and would recommend.