YA-500-GSM-6 Wireless SMS Home Security Alarm With Sensor Detector Call System - US Plug. 8 wireless sector; Can store 5 wireless remote control, automatic code. The default 6 groups of alarm telephone, SMS number 2 group. Ac power and electricity have a text message (built-in rechargeable lithium battery). The built-in speakers, external wired alarm. Voice optional: Chinese, English, Spanish, French, etc. LCD display, built-in universal clock, calendar, there are a variety of optional slip type, programmable alarm position, timing, cloth, long distance remote control machine, monitor, intercom function, recording, on-site alarm, and so on. Buy this Product and Save $10 Off for YA-500-GSM-6 Wireless SMS Home Security Alarm. With coupon code: YA500GSM6 at checkout.