The water-resistant Suunto GPS POD uses the Global Positioning System to track your speed, distance and progress while you are out training, trekking, cycling or climbing. This essential training data helps you accurately assess each workout and monitor your progress along the way.It adds a new dimension to all POD-compatible Suunto heart rate monitors (t3,t4 and t6). Armband included.Features:- Wireless sensor that uses a Global Positioning System to track speed and distance across wide variety of outdoor activities- Fast and easy to attach with clip or armband (included in the package)- Battery lifetime > 10 hours- Interference-free ANT Transmission Technology- Works with all POD compatible Suunto Heart Rate Monitors (t3c, t4c, t6c)- Water resistant to 1 m / 3,3 ft- Lightweight (only 72 g / 2,5 oz with batteries)