I have the Auna FU-2-B experienced at an event and true very surprised voice and vocal quality quite Order. Now the hook - the frequency band 170-210 MHz is subject to fees (approx 130 +10 per transmitter). Some wireless - frequencies used for LTE and some for DVB-T, which then partially eliminated, or even charge you are. Neither Amazon still in Electronic-Star stand somewhere the transmission frequencies of these microphones - away so if in doubt hands and perhaps a slightly more expensive Omnitronic - Buy Micro.