1. Wireless receiving heartbeat signal transmitted from heartbeat brooch, chest band frequency is AM 5.3KHz
2. Time display: hour/minute/second
3. Alarm clock function
4. Give alarm when heart rate exceeds the upper and lower limit value(60-220)
5. Timing(maximum time-keeping is 23 hours,59 minutes,59 seconds,99)
6. 12/24 hour displaying format
7. EL backlight
8. Keystroke tone
9. Voltage: 3V
10. Battery: CR2032
11. Watch size: 240x46x11mm
-Chest band size: 35x10x750mm
12. Static Maximum Drive Current: <= 3.5 uA
-Static Average Drive Current: <= 2.5 uA
-Heart Rate Monitor Current: < = 30 uA
-EL Lighting Current: <= 10.0 mA
-Alarm Ring Current: <= 2.5 mA
-Emission Distance: >= 65 cm
-Emission transient current: <= 4.5 mA
