Straight out of the box all you have to do is insert the batteries a little fitting with the button to fit onto the door frame (either sticky pads or screw in, personally id screw into the wood) then fit the chimes wherever you wish in the house and choose your chime, your ready to go. The wood effect on the chimes is a big visual improvement on the usual white/silver plastic that comes with these types of devices. Only the durability will tell if worth the price but i wasnt going to wait 6 months to review and to be honest i dont forsee any short term issues with this.