The 02-08FUSCHG-C is a charger base for fusion 8 microphone system. Enjoy longer usage period of superior audio. Easily replace batteries in the field by simply opening the back of the microphone, take out the previous battery, and replace it with a new one. With the battery charger adapter, users are able to charge spare batteries for HD™ and FLX™ products allowing fully charged batteries on hand for use cases that go beyond the time of one battery. Revolabs charger base optimizes the battery life of Revolabs wireless microphones to extend the usage time.