The MIPRO's ACT32H cardioid condenser microphone is a portable wireless microphone transmitter that collects sound evenly. It features high fidelity, wide dynamic range, fast transient responses, good feedback rejection, accurate sound-image characteristics, transparent sound quality, and maximal SPL tolerate. ACT32H has a reversible end cap that can be used to lock the power on/off switch to prevent inadvertent power-off during use and a multi-layered metal grille that protects the capsule from impact, rolling, and pop noise.