Frequency response: 60 - 15,000 hz. Quick search of available frequencies. Receiver 2 channels with plastic case. Frequency range m17: 662 - 686 mhz.Power supply of the transmitter. The item "2 shure blx88 wireless microphones + receiver + power transformer" is on sale since Friday, June 15, 2018. It is in the category "musical instruments \ professional audio equipment \ microphones". The seller is "leiloglou" and is located in cournonterral. This item can be shipped to the following country: France.