D1D9 Home Burglar Alarm System 23 pcs kit Wireless DIY GSM Auto Dialer for House Security

REMOTE CONTROL You can control this burglar alarm system Arm/Disarm/Voice Monitoring /Intercom by cellphone anywhere(Need a T-mobile SIM card)
SCARE BURGLAR AWAY When someone trigger this system that will be alarm to scare thief away and also will make a phone or sending a message to someone which you save the phone
BUILT-IN BATTERY This system work well when someone cut wires or power off. You don’t worry other people intrude your house when power off