Just want to pass on something I learned the hard way. I use the alarm clock almost daily. After I set it for a Mon to Fri time, I replaced it in the holster. Luckily I was alert Monday and Tuesday and really didn't need the alarm. Wednesday, I placed the Droid X on the table. When it was time for the alarm to go off...it did...nice and loud too. Then I realized that you can stop the ringer by placing the phone on it's front side. I guess the same thing happens when you place it in the holster. I experimented around and now know that when I want the alarm to go off...leave it face up on the table.