Overview:
1, Variety of polyphonic ring tones are free to switch, elegant sweet
2, Hands-free indoor unit, classic style, 7-inch color TFT; Clear image, brightness / color / voice volume adjustable
3, With intercom, surveillance, two-way conversation, open the lock function
2, Hands-free indoor unit, classic style, 7-inch color TFT; Clear image, brightness / color / voice volume adjustable
3, With intercom, surveillance, two-way conversation, open the lock function