The advanced technology of our wrist-top and hand-held Digital Navigation Systems (DNS) allows quick, easy access to essential information in one compact package. Wherever you go, you can benefit from having the latest, most accurate information at your fingertips. Features alarm clock with snooze function, calendar, thermometer and compass with cardinal points. All units are protected by a rugged, rubber-armored, 100% waterproof housing and feature a large, backlit LCD display. DNS Pro models also feature barometer, altimeter and weather forecasting functions.