When the alarm is triggered it will contact your mobile or landline. On activation up to 9 telephone numbers are called in sequence. Records and plays back 2 x 10 second messages. Wireless 8 zone alarm control panel. Totally wire free. LCD displays for status information and programming. Dual powered battery and solar. 110 decibel external siren with LED strobes. Kit includes 2 wire free sensors, 1 wire free door/window contact and 1 remote key fob. Batteries included.