When the weather's poor, making that trek out to the mailbox can be an undesirable chore. And since delivery schedules can be unpredictable, all too often you may find yourself peeking through that mail slot several times a day. But with the Mail Chime, you'll always know instantly when the mail has been delivered. Whether you have a mail slot, a curbside box or a wall-mounted mailbox, the Mail Chime will ring as soon as the mail arrives, even if your home is 300 feet away from your mailbox!