WMS420 is a professional multi-channel wireless microphone system with pilot tone transmission to prevent unwanted noise. The Vocal Set includes a HT420 handheld transmitter featuring a patented state-of-the-art D5 dynamic capsule for well-balanced, powerful sound. The space diversity receiver offers both a microphone level and a line level output. The WMS420 Vocal Set Band-A es mainly composed of a handheld transmitter HT420 and a stationary receiver SR420.