Host 2AAA alkaline batteries to operate ( not included ) <br> An 12V/27A alkaline batteries ( not included ) of the remote control to operate <br> Installation: <br> Select windows and doors to the installation location, with water and cloth to clean the mounting surface, the double-sided adhesive tape on the bottom and then this machine is attached to the clean position <br> Installed host, and then double-sided stickers magnets host next door or door frame, pay attention to set the magnetic iron arrow at the arrow to the right host. <br> Ensure close the door the host and the magnet installation distance should not exceed 10mm. <br> Application Function: <br> Arming and disarming <br> Alarm triggered <br> Emergency functions <br> When you are at home when you encounter an intruder or other emergency situations, the remote control [flash] is pressed on the key host will ring alarm. <br> Emergency function keys are valid in any mode. <br> Doorbell function <br> Increase the remote control <br> You can increase the remote control depending on your needs see the instruction set <br>