| ETS SM7va 4 zone, sequential or manual switching, audio/video surveillance system (cameras not supplied). Can be used independently for monitoring live audio/video or with tape recorders for recording and playback. Two modes of operation: Audio follow video mode or audio mixer/switcher operates independently of video switcher.
Product Details: - 4 SM1 Pre-amplified microphones.
- SM4va Switcher / mixer / amplifier.
- 12 VDC AC adapter.
- 3’ Dual RCA Patch cable.
- Warning label.
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