Califone M319 Beltpack Transmitter - 150 ft - 1 x 9V - Beltpack

Higher power level ensures your message will be heard in outdoor settings, gyms, or auditoriums Hands-free option for presentations Two power settings to tailor the output to the environment where the audio amplification is being used Lower power level is designed for smaller settings to help prevent interference if there are neighboring PA systems being used in the same building 16 selectable channels