Compact WPA Series Control Heads have fully water resistant, sealed toggle and rotary switches, as well as PA volume control. Removable noise-canceling microphone included with WPA1 and WPA2 control heads. Three position, center-off, toggle switch on WPA1 and WPA2 enables the control for siren only functions or combined siren and light operation. (Light operation is enabled by a low power control line.)
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