Swann SWHOM-MDAPK8-GL Window Magnetic Alarm, 8 Pack (White)

there should be one nine-volt in three double A batteries the watch battery the last one is included this is everything in the box this is a double-sided tape for the doorbell to mount it or you can use this plate I believe tomate either or the hardware screws in the anchor I believe these are outdoor units so these should light up because they do nothing else you're just a button I've been out they're not shiny white nothing in the bomb nothing on the left side is the volume and I guess to meet different musical tones that they'll have that one belt and then the back mounting holes that looks like the speaker stickers and serial number information compartment this unit takes three Triple A batteries so you'll need three Triple A batteries for the main unit I'm putting in the battery now just plugging this in it went to one and the other one goes to two automatically I didn't have to do