iMeshbean New Wireless Home Security Alarm System DIY Kit with Auto Dial & Outdoor Siren Model # 001 USA Note:The item must connect a landline; Without Record Function:99 Wireless distinguishable guard areas LCD indicator on the host machine. Using micro-computer to operate the alarm system, it can prevent theft, No wiring is required and it is easy to install Owner of the alarm system is able to listen to the conversation of the intruders on the phone and the owner may re-activate the alarm to go off the second time to frighten the intruders; Horn hooting time length control option(1-9 minutes selectable by user) Wireless remote control to activate / deactivate through telephone system; The micro-computer auto calling reporting system can program a maximum of six (6) telephone numbers and it can be to a mobile phone or fixed line phone. Telephone line cut off alarm function option; Build in NI-HI rechargeable battery is available to provide power supply nearly 5 hours automatically after power off.