1. Color CCD/CMOS camera, 4’’/5.6’’ (main monitor), 2.5’’ (monitor) color TFT display;
2. 30s sixteen-chord melody ring, 15s monitor if needed, 120s confidential conversation;
3. 3 kinds of ring available, 3-level volume adjustable,
4. Hand-free monitor, inner-call via broadcasting, intercom function;
5. Rainproof door station panel, camera lens angle adjustable, ...
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