A UHF silent disco set with up to 3 x wireless transmitters for use with the W Audio SDPRO silent disco wireless headphones. There is no limit for the number of headphones receiving from each transmitter, up to three transmitters maybe used if each transmitter is switched to a different channel allowing up to three audio sources to be played back to the audience. The RF transmission system operates on 863-865Mhz in the license free CH70 spectrum
