Pro-Form Pro-Form iFit SmartBeat Heart Rate Monitor

Optical PPG Heart Rate Sensing Technology; 30 Hours Of Battery Life Between Charging; Rechargeable Lithium-Ion Battery With Magnetic Charging Cable; Bluetooth And Ant+ Dual-Band Technology; On/Off Button With LED Indicator Light; To Be Worn On Forearm Or Upper Arm; Includes A 1 Size Fits All Adjustable Non-Slip Arm Band; Compatible With Pro-Form And NordicTrack; Black Finish