Includes: Edge 305 with speedcadence sensor and heart rate monitor, Bike mount, Training Center CD, AC charger, USB PC interface cable, and Owner's manual. Garmin EDGE 305 Key Features: Up to 12 Hour Battery Life from rechargeable Li-ion. Stores 100 waypoints with name and symbol. Available with heart rate monitor or speed cadence sensor. Built in highly sensitive SiRFstar III Receiver Auto Lap feature records lap data when you reach a specified distance. Garmin Training Device for Cyclists! For the more serious of cyclists, the Garmin Edge 305 is the next system in the Edge series. With its sleek design, the Edge 305 features a 1.17"W x 1.44"H (29.65 x 36.69 mm), 128 x 160 pixels, 4-level grayscale LCD with back-light for easy viewing just like its little brother, the Edge 205. Ready to go out of the box, the Edge 305 requires no calibration and easily attaches to your bicycles handlebars or stem. The Garmin Edge 305 features a highly sensitive SiRFstarIII built-in patch receiver, providing extremely reliable reception in conditions such as tree cover or even while deep in a canyon as well as a barometric altimeter for more accurate elevation readings. Garmin has taken it a step further with the Edge 305 by giving you the ability to interface the optional Heart Rate Monitor or the Wireless SpeedCadence sensor with it. The Garmin Edge 305 comes with a trip computer consisting of eight different customizable fields. A few examples include: Distance, calories burned, altitude, speed, climb and descent and many more. The Edge 305 comes packed with features to assist in your daily ride. One of which is called the Virtual Partner. The Virtual partner included in the Edge 305 will allow you to ride against a desired pace. You can even ride against a previous course youve ridden that is stored in the Edge 305s database. This information can then be transferred to the included Training Center program via usb connection, allowing you to analyze your results with interactive tools provided in this software.