MR1 - GSM + RFID Alarm System, LCD Screen with Clock Display This is a new Type Wireless Door Window Safety Contact Magnetic Security Alarm.keep yourself&your property safety. Widely used in home,shopping malls and so on.Placed on the doors and windows. KERUI is a professional security supplies supplier,focus on strong quality security products design,research and development more than 17 years.We are responsible for security,Only for you to enjoy a security life,awe can ship to Albania Andorra Belgium Bosnia and Herzegovina,Germany,Denmark,Finland,France,Greece,UK,Ireland,Iceland,Italy,Serbia and Montenegro,Croatia,Latvia,Lithuania,Luxembourg,Macedonia,Malta,monaco,Netherlands,Norway,Austria,Poland,Portugal,Romania,San Marino,Sweden,Switzerland, the Slovakia,Slovenia,Spain,Czech Republic,Hungary with DHL express,TNT express,UPS,USPS ,fast shipping world wide. . Build-in rechargeable battery (automatically recharge). For short term backup only. App operate in Smartphone : Free Apps available for download in iPhone or Andriod phone. Simple using App to send SMS for making Away Arm, Disarm, Get record. We hope our excellent products,warm-hearted service can obtain your favors! Wholeheartedly welcome your support and cooperation!.