Applicable to professional microphone and connection between the professional equipment mixer, power amplifier, equalizer, pressure limit device, frequency divider, digital decoder, professional microphone connected camera equipment, broadcast professional card nong male, the female line balace microphone, XLR microphone cable, made of fine copper wire, durable. Suitable for stage sound, press conference, KTV, professional sound reinforcement, lighting wedding bar lamp wired control, home theater and other environment.