Suunto GPS POD Wireless sensor that uses a Global Positioning System to track speed & 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 (t3, t4, t6, M5) Water resistant to 1 m / 3,3 ft Lightweight (only 72 g / 2,5 oz with batteries) Suunto GPS POD - Track your progress How far have you go