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Silent disco Accessories requires colorful headhpones, 2-channel wireless sound system, FM transmitter(with a range of up to 100 metres), headsets for two individual DJs or sound sources. In this disco party participant one can choose the music style they want to listen by pushing of a button on the side of their sound quality headsets with soft padding and individual volume control. More Info:- http://www.silentdiscoinabox.com/