The MIPRO's ACT707HM is a wide band handheld wireless microphone with rugged and lightweight magnesium alloy housing. ACT707HM comes with World's first ACT (Automatic Channel Targeting) function provides rapid and automatic channel setting of the transmitter. The hypercardioid condenser microphone capsule delivers high fidelity, wide frequency response, high dynamic range, rapid transient response, low echo feedback, clarity and accuracy sound image contributes, ideal for vocal use. Even better, the unique dual steel microphone head-grille construction has eliminated pop and wind noises, and prevented high pitch loss