Wireless video door phone

1. Maximum 2 cameras and 2 monitor same time in a system. 2. Choosing 2.4G ISM digital public frequency resource: 2402 2483.5MHz. 3. Transmitting at 20dBm,Receiving -100dBm; 4. With 8 12 digital audio serial input, DAC output, 8K audio acquisition for good audio quality. And audio volume preset able in 4 levels. 5. MJPEG digital video coding and decoding, 10 15 frames per second. 6. Reliable audio/video communication distance 300m in open area. 7. With AFH auto frequency jumping technology, working with 2.4G WIFI and blue tooth same time. 8. With auto sleeping mode, saving battery consumptions in stand by status. 9. With external power supplier for camera units DC3.6-6V, with this consideration, the lock can not be open from outside camera unit, but signal from monitor. 10. Random 40 bit encryption for digital audio and video to secure the communication. 11. Random communication channel jumping and synchronization, no interference from same products installed nearby. 12. With communication, monitoring and remote lock opening functions. 13. Permitting monitor to monitor communication, like walky talky features. 14. Digital camera and digital 2.4 inch TFT LCD in the system for good image quality.