The hands free wireless microphone is perfectly suited for active speakers on the go. Aerobic instructors use these systems and any event that requires your hands to be free, this microphone will ensure your event will be one to remember. Offering highly intelligible individual voice reproduction, the comfortable, lightweight PRO8HEcW is ideal for guitarists, keyboard players, drummers and others who need the use of their hands during performance. This microphone is digital, so there is no interference from electrical frequenices.