The MIPRO's ACT50H is a rugged wireless microphone transmitter with unique multi-layered steel grilles that protect the capsule from impact, anti-roll, and pop noise while still providing transparent sound clarity. ACT50H has interchangeable capsule modules with quality condenser or dynamic choices, which proprietary true condenser capsule provides high fidelity, wide dynamic range, excellent feedback rejection, and transparent sound quality. While the proprietary dynamic capsule provides low handling and impact noise characteristics. It also has a silent lockable on/off switch (proprietary) to prevent power-off during performance and the LCD shows working channel, battery status indicator, and error code messages.