1. 2.4G lauch frequency, the power is no more than 20dbm, non-obstacle remote control is rough150-180m;

2. With micro-dealing technology; auto-remote control, fine characteristics and high reliability;

3. The TFT 2.4" digital color display screen for indoor video intercom;

4. CMOS 30 pixel camera for outdoor phone;

5. Clear night-viewing, 24 hour monitoring, calling , speaking and unlocking remote controlling, etc;

6. One indoor video phone can control Max.5 pcs outdoor phones at most;

7. USB delivery for indoor video phone and many Li-ion rechargeable batteries;

8. Indoor video phone can take/save/view photos with above 500 photos at least by internal memory.