The IFBR1a-VHF receiver: simple and intuitive for untrained users to operate. Powered by one 9V battery. 8 hours battery life (alkaline), 20 hours battery life (lithium), battery and headphones NOT included. Receiver ONLY (choose transmitter above) http://www.lectrosonics.com/US/Categories-listing/product/522-ifbr1a-vhf.html#data-sheet
