Very easily set up straight out of the box plug the chime into any plug socket in your house and select from one of the 52 various chimes available, open up the button and either screw to your outside door frame with the screws and plugs provided or stick to it with the 3m adhesive pad provided, pop the batteries in (not provided) reassemble and your in business. Downside to this is feels very plasticy and cheap compared to others i have purchased for the same price and no batteries supplied for the push button pad which at this price i think they should be. Very useful serves its purpose but a little over priced for how the quality feels.