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Product Description
- Internal line phone call intercom.
- Energy efficiency design and convenient operation.
- Clear communication both sides of the two intercom.
- Elegant appearance.
- Installation is very simple.
- The bell ring loudly and clearly.
- As long as the extension cable conductor material is good, effective distance can be as high as 8m apart.
- The product quality is very reliable, low voltage power supply security communication convenient.
- It is the first choice of realizing internal communication products.
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SPECIFICATION
- Noise voltage <10mV
- Ring level > 70dB
- Static current <5uA
- frequency property +-3dB
DC function
High Volume
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