SUUNTO Smart Belt Heart Rate Recorder and Wireless Transmitter and Docking Station Combo Pack Combination pack features Memory Belt heart rate monitor and docking station that allows you to transmit workout data from belt to computer for easy analysis Wireless ANT radio technology records up to 24 hours of beat-to-beat heart rate information on integrated memory chip for later download and analysis; operates on secure 2.4 GHz frequency Docking station allows you to transmit workout data from Memory Belt to your computer for easy analysis Medium-sized strap fits most users, runs on replaceable battery, and is compatible with Suunto Team POD, Suunto PC POD, Suunto T3, T4, and T6 devices (sold separately) Includes limited manufacturer's warranty of two years for sports instruments and heart rate monitors, and one year for accessories such as heart rate monitors, chargers, straps, etc.