en-us Product Description: The TrailHead is uniquely designed with a carabiner clip that attaches to a backpack, purse, or belt loop. Featuring a digital compass, 100 hour chronograph, with 100 laps and 25 sesssions. The TrailHead also features the time, 3 daily alarms, training log with multiple timers, and a smart backlight. Additionally, the TrailHead has a mineral glass lens and a user replaceable battery. http://www.earlymiser.com/product/B000N23ZES http://ecx.images-amazon.com/images/I/41GBbzV3qOL._SL75_.jpg http://www.earlymiser.com/product/B000N23ZES