Easy to use: just clip onto your shoelace Automatic on/off Lightweight: 9g (0,3oz)Battery life: 400 hours Battery is easily replaceableWater resistant: 10m / 33ft Disturbance free ANT-transmission The Suunto Foot POD Mini is an updated version of the old Foot POD and enables you to accurately assess your running performance on the go when you\'re walking, running, or jogging - in an easy, fun and stylish way. Coupled with your Suunto t3, t4, t6, Quest or M5, the Suunto Foot POD Mini allows you to monitor and record your real-time speed, distance, and pace data - essential for runners, walkers, or joggers who want to improve their performance, optimize their training, or just review their condition over a days activity. Aim to improve your long-distance conditioning, by setting speed limit alerts to warn you if you go above or below your personal limits - an ideal tool for marathon pacing and mixed-intensity training. When interval training, capture automatic lap times and distances to help you better monitor your performance and increase your overall training efficiency. Get a complete understanding of each training session by combining the detailed running information recorded by your Suunto Foot POD Mini with the physiological data compiled by your Suunto heart rate monitor. For added security, an extended battery life of up to 400 hours will help ensure that you don\'t miss a step of information. Make every step count - clip on your Suunto Foot POD Mini and start your journey.