Advantages & Features: 1) GSM Quad-Band 850/900/1800/1900MHz enable K9 works great in worldwide. 2) 99 zones for security intrusion alarm, elderly care, SOS help, 7*24 hours safety applications. 3) 10 different zone types and zone name editable. 4) Multiple status optional: Stay, Away, Bypass, Schedule Arm/Disarm. 5) User friendly menu with 10 languages: English, Spanish, French, German, Russian, Italian, Indonesian, Czech, Danish, Chinese. 6) Visible information on big LCD screen, easy setting and operation by touch keypad. 7) Two way voice communications, regular phone call as hand set supported. 8) 2 wireless switch channel for remote control & door access (*works with K9-WS1, K9-WS2). 9) Just simply dial in to the K9, change the status to Arm / Stay / Disarm by missed call, or create voice conversation automatically. 10) Monitoring zone for take care of elderly daily life activities. 11) Temperature monitoring alarm available. 12) Alarm panel & wireless sensors battery low power monitoring. 13) Backup rechargeable battery inside, AC power lost alert available. 14) Audible alarm inside, support wireless siren too. 15) Ademco Contact ID protocol over GPRS data supported. 16) Fashion design of sleek panel with a classic elegant piano finish. 17) Easy DIY--Smart phone APP for configuration & operation. 18) Up to 999 event logs for record alarm, call in or out, etc.