The Tom Tom Runner 2 cardio music small heart rate monitor with headphones is designed for multisport enthusiasts who want to improve their performance while listening to favourite tunes. This versatile GPS watch offers music storage for over 500 songs & comes with wireless, sweat & weather-resistant Bluetooth® earphones providing superb quality sound to energize your training sessions. The device gives you accurate heart rate information on the wrist thanks to a built-in heart rate monitor & lets you train in running, treadmill, swimming, bike & gym mode. A 24/7 activity tracking feature helps to capture steps, active minutes & calories burnt, whereas 5 heart rate training zones enable you to get results faster. There is also a race mode that allows for choosing one of your past performances to race against, as well as an interval mode which improves speed & fitness with custom work-rest sessions.