User Instructions Precautions (Cont).: (3) Each time you use the WR-80 microphone system use the following procedure: a. First, turn ON power to the WR-80 receiver. Then, turn ON wireless microphone. b. When shutting down system, first, turn OFF the wireless microphone. Then, turn OFF power to the WR-80 receiver. Warranty & Service The WR-80 has a 2 year limited warranty. Mail in warranty card as soon as possible. For service, contact your local American DJ® Dealer.