• Automatic microphone switch with optical sensor. • Easy installation between microphone and cable. • Active infrared sensor for presence detection. • Turns on the microphone silently when detecting someone. • Automatically turns off the microphone when no presence is detected. • Red LED indicator for operating status. • Compatible with 48V phantom power. • Works with condenser microphones. • Eliminates unwanted noise in unused microphones. • Improves signal clarity and dynamics. • Reduces noise by 16 dB for in-ear applications. • Ideal for powerful stage environments. • Dimensions: 69 mm length x 35 mm height x 21 mm width. • Connections: 3-pin male XLR. • Black anodized aluminum case.