Oscar B I think the blue ones are called Pocket Timer 2. I've got the Pact Timer 3, and it's great. All of them run you about $160, but it will be the best shooting accessory that you've ever bought. Trust me. I NEVER just stand in one spot, and "plink" anymore. NEVER!! Shooting will become a whole new world to you, as it will become much more fun, and much more useful for training. I've found almost 60 drills, online. I've written them down in a "booklet", and I never shoot without them.
