I bought this little data logger a few years ago for a bit of fun on trackdays, where live timing isn't allowed, so I just turn it on, hit the button, stick it in my pocket, drove around and looked at the data when I got home. I found it useful for working out if I and/or the car was getting quicker. But it's not a fully fledge Vbox system of course! Have also used it when just driving around on the roads normally and even walking around town. Can be used for all sorts of stuff, like mountain biking, skiiing, public road blatting, etc. I don't really need this gadget any more, so have decided to sell it. It's the slower 5Hz version, as opposed to 10Hz, but it is still adequate for the "casual" data logging enthusiast. It was about £130 new and comes with the box, case, unused velcro pad, manual, CD, USB cable, fag lighter power thingy, wrist strap and even the sticky film is still on the unit. The product's web page is here: http://www.qstarz.com/Products/GPS%20Products/BT-Q1000EX-F.htm And photos of it on my dining room table here: https://www.dropbox.com/sh/2lm1l6e333vazsw/AADd_fyugp7hSOz1IsaR3yhAa?dl=0 Asking price is £60 including delivery.