... 1, PSTN security alarm with LED display and keyboard 2,99 wireless and 2 wired 3,Voice prompt function 1 ... the scene and also on-site monitoring intercom. 8,Wireless doorbell function ... with any phone or cell phone can be controlled live arm, disarm, monitor, intercom, a / wireless appliance control output, system settings and ... local and remote control. 28, can be equipped with wireless sound and light ...