Wired for adventure, the Traileader Pro will never slow you down. It accurately monitors heart rate and measures speed and distance. The digital compass guides you through the densest cover, and the barometer helps you monitor changing conditions. It even syncs with your PC. Specifications/Functions:- Highly accurate Accelerometer-based exercise mode (speed, distance, calories, steps, pace measurement)- Heart Rate Monitor- Altimeter- Barometer- Compass- Thermometer- PC link capability- Water Resistance: 10m