This is a perfect timer for Holdem tournaments !!  It is easy to use - you can set the number of minutes for the blinds, restart after each round, pause it if you take a break.  Set it and forget it. The timer will remind you when the blinds are ready to increase. It is much better than trying to remember to look at the clock or to have someone use their cell phone only to have your "timer" leave when they get busted out !!  You can't beat this low price !!  It uses a regular AAA battery which is much easier to use than the small round ones and of course, they are less expensive too.  Battery included.