Ok, if you don't already have this, you NEED to get this! (I have it) Besides just tweaking the buzz, you can get the led to do pretty much anything you want too. I got my phone ringer doing "disco" (that's a rotating mix of colors), and then different colors for my different email boxes. CB mod mail is orange (CB logo color), 911 mail (mail from mom, my boss etc) is red, regular mail violet, and BBM is blue (the icon color). It's SO handy. It's worth full price, but 2.97 is the deal of the CENTURY!