Nady 151 VR HT Professional Wireless DSLR Camera / Video Camcorder Portable Handheld Microphone System &ndash; Compatible with Canon / Nikon / Sony / Panasonic / BlackMagic / Zoom / Tascam / Roland Ultra-portable design with professional quality and performance. Engineered specifically for use with Professional Video Camcorders and DSLR / Consumer Video Cameras with TS 'Mic/Line In' port (3.5mm TS-&gt;TRS adapter required for some cameras) Ideal for weddings, interviews, concerts, theater, presentations, seminars, church, and sports Battery-powered system ensures universal adaptation and operation under the most demanding recording environments and 'on-the-go' filming scenarios. Up to 10 hours of continuous use WHT-15 Handheld Transmitter with proprietary Nady DM-10D dynamic cartridge for optimum true sound, maximum feedback rejection, and minimal handling noise This is a single fixed-frequency wireless system. Please consult the manufacturer to confirm compatibility when attempting to use two or more of this system simultaneously or use it with other wireless systems.