K＆F Concept M8 UHF Wireless Lavalier Microphone for Video Camera & Camcorder. Specifications: Number of Channels: 6 Battery Life: 15-20hours for new battery Transmitter/Receiver Battery: 2 * AA 1.5V Operating Range: 2756 inch / 70m （without obstacle） Frequency Range: 560-580MHZ (can be customized for other frequency bands, depending on the regulations of different countries)
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