NEW IN BOX SmartBeat heart rate armband monitor by iFit. Includes arm band and charger. Specs Adjustable, non-slip, one-size-fits-all band Wear on forearm or upper arm Magnetic charging cable 30 hours of battery life per charge LED power button 1-year warranty Tech Optical PPG Heart Rate Sensing Technology Bluetooth® connectivity Rechargeable lithium-ion battery Syncs to iFIT app and equipment