It's a simple hand-held baton and it gives instant digital readout of heart rate. All you have to do is grab it with both hands, and seconds later, you have your heart rate. No more counting heartbeats then multiplying. And you don t have to wear cumbersome attachments on your wrist and around your chest any more. It doesn't get any easier than this. Quantity One. Measure your heart rate simply, instantly and accurately. Ideal for use during aerobics, while jogging, walking and more. No cumbersome belts, wires or attachments. Simply grasp InstaPulse Heart Rate Monitor with both hands for a reading.