Discount Honeywell RPWL200A1008/A Portable Door Chime Surface Mount Push Button

I DIDN'T HAVE A DOORBELL FOR MY APT AND THIS DOORBELL IS GREAT IT RINGS LOUD SO I CAN ONLY KNOW WHEN SOMEONE IS HEREGet more detail about Honeywell RPWL200A1008/A Portable Door Chime Surface Mount Push Button.