Tracking Key , 8.25.2009 Reviewer: Todd (Kentwood, LA) key made adding up driving mileage easy. Activity reports were pretty easy to use. Driving Activity Reporter Did the JOb , 8.10.2009 Reviewer: Rebecca Earlywine (Los Angeles, CA) The driving activity reporter tracking key gave me all the mileage information I needed for tax work. Worth the 200 bucks. I never used a Fleet Vehicle Tracking system before and had an easy time uning this Fleet Vehicle Tracking system. If you have a teen you must have this , 8.3.2009 Reviewer: Joey McNamara (Cumming, GA) Used the Tracking Key on my teen daughter’s vehicle to verify the places she said she would be staying the night. Discovered she was telling the truth but that she was going 87mph to her friends house in a 55mph zone GPS Tracker is Top Notch , 4.3.2009 Reviewer: Det. John P. (Miami, FL) I am a retired law enforcement officer who now owns a private investigation firm. I have used numerous devices and gadgets in my line of work to catch suspected criminals or others engaging in deviant behavior and I must say this is the most affordable and effective tool I have ever came across. I recommend it to all my clients and have got nothing but positive and accurate results. Awesome device , 3.11.2009 Reviewer: Josh Duffey (Temecula, CA) This was a really cool GPS tracking system. Simple to use and does all that it says.