Up for sale is my Garmin 500. I bought this new a few years ago, but it hasn't been used much. It was only used on one outdoor ride, and has since lived on an indoor bike and only used in the winter months. The battery is still good -- it's probably been recharged less than a dozen times. I charged it last weekend to make sure it still works, and when I took the photos today it's still showing 100% charge. Everything that comes with it new is included, as shown in the photos. I mounted the sensor on a wooden shim because the bike this was on had slim carbon cranks, so I'll include that in case you need it to mount on your bike. The computer itself is in perfect cosmetic shape, with the exception of a tiny mark on the case. It's too small to photograph without zooming in on it. The chest strap for the heart rate monitor has been freshly laundered. Price includes shipping in the US. Let me know if there are questions. Thanks.