Portable 16-channel UHF wireless instrument system for bass and woodwinds. Miniature, lightweight transmitter clips directly onto bell of horn. No cord connection needed. 16 user-selectable UHF frequencies for interference-free operation. Protective rubberized clamp-on device easily locks transmitter firmly to horn. Flexible gooseneck allows optimum microphone positioning. Transmitter features high-performance microphone with tight cardioid polar pattern and wide frequency response to suppress unwanted feedback. Unprecedented wireless portability with single AA battery-powered receiver. 1/4-inch plug for connecting receiver to powered speaker, mixer or other audio source. ASC™ (auto-sync channel) infrared wireless download pairs transmitter to selected receiver frequency for quick, easy setup. Up to 250ft operating range line-of-sight. Transmitter powered by single AAA battery.