ezon heart rate monitor sports watch with hrm chest strap,waterproof,stopwatch,hourly chime t007 ezon ezon t007 professional heart rate monitor digital watch is designed specially for fitness enthusiast, track team, running amateur and any other indoor/outdoor sports enthusiast. <p><b>introduction</b><br> the product has the function of heart rate monitor, it can help to ensure you receive the maximum benefits from your exercise program. you can increase the effectiveness of your exercise program by monitoring and quantifying your results every step of the way. <br></p> <p><b>mhr (maximum heart rate) </b><br> mhr is expressed the maxium beats of the heart per minute. it is important that you know your maximum heart rate training zone, upper heart rate limit and lower heart rate limit before you begin. they help you achieve the maximum health benefits out of your workout. <br></p> <p><b>key features </b><br> 1. heart rate monitor<br> 2. stopwatch<br> 3. calender<br> 4. chronograph<br> 5. hourly chime<br> 6. 5atm waterproof<br> 7. alarm<br> 8. el backlight specification<br> 9. cr2032 battery: 12 months life<br> 10. easy battery replacement mode <br></p> <p><b>package list </b> <br> 1. heart rate monitor digital watch x 1 <br> 2. transmitter strap x 1 <br> 3. warranty card x 1 <br> 4. instruction manual (english) x1 <br></p> <p><b>attention</b> <br> 1. this is a multi-functional sports watch with many useful features. please read the instructions and settings carefully. it will be very useful. <br> 2. please donot press any buttons underwater and keep it away from steam and hot water in case of damaging waterproof ring.