Great for detecting the heart rate changes for sports， adjust the sports strength more conveniently and avoid accidents that may result from an abnormal heart rate  <br>8 kinds of measurement functions: riding speed， average speed， maximum speed， riding distance， riding time， timely heart rate， maximum heart rate， time <br>Detect calories and fat consumption <br>Wire control button， anti-interference <br>A good assistant for riding <br><br><br>Color: black <br>Speedometer dimensions: total length: 57mm， total width: 45mm， screen length: 34mm， screen width: 31mm <br>Transmitter dimensions: length: 41mm， width: 46mm <br>Heart rate belt dimensions: length: 270mm， width: 34mm <br>Operating voltage: 3V (CR2032 battery) <br><br>Features:<br>Metric (Km / Kg) / Imperial (m / Lb)  <br>Tire circumference setting (0mm ~ 9999mm) <br>Initial total mileage setting <br>Maintenance alert setting and function<br>Weight unit and setting <br>Heart rate threshold setting (80-180 beats / min)<br>Clock setting (12H / 24H) <br>Riding parameter reset<br>Instantaneous riding speed<br>Contrast prompts<br>Riding total mileage (0-99999 km / mile)<br>Single mileage (0-99999 km / mile)<br>Maximum speed<br>Average speed<br>Riding timing (0: 00: 00-9: 59: 59)<br>Calories consumption (0-99999Kcal)<br>Fat consumption (0-9999.9Kg)<br>Automatic cycle <br>Power-saving mode <br>Heart rate strap <br><br>Accessories: heart rate strap， transmitter， wire control button， base， tie， stopwatch， magnets， batteries， user manual <br><br>1 x Speedometer <br>1 x Transmitter <br>1 x Heart rate strap <br>1 x Chest strap <br>1 x Base <br>1 x Magnet <br>1 x Ties set <br>3 x CR2032 button battery<br>1 x English user guide<br>In original package<br /><img src="//agdetail.image-gmkt.com/m430/237/333/842333237/img/agdetail.image-gmkt.com/237/333/842333237/img/img6.eachbuyer.com/x9/p100/cq549_1.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/237/333/842333237/img/agdetail.image-gmkt.com/237/333/842333237/img/img6.eachbuyer.com/x9/p100/cq549_2.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/237/333/842333237/img/agdetail.image-gmkt.com/237/333/842333237/img/img6.eachbuyer.com/x9/p100/cq549_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/237/333/842333237/img/agdetail.image-gmkt.com/237/333/842333237/img/img6.eachbuyer.com/x9/p100/cq549_4.jpg" />