Features:

Simple and practical 
Alarm,Choronograph,and backlight function
Keystroke tone
The best personal monitoring device in protecting your wellness 
Achieving a healthy lifestyle. 
Record data from the past 6 days to keep track your physical exercise progress.
Design for joggers, walkers, runners, cyclists, hikers, climbers, skiers, weight-loss participants and also for injury-rehabilitation patients.
 
Specifications:
Wrist Unit: 
Thickness: 4mm
Work voltage: 3V
Battery type: CR2030
Wrist strap material : Polyurethane
Battery life : Average 36months(Japan battery)
Chest Belt (Transmitter):
Dial Color: Silver
Material: Natural rubber
Watch band: 28.3cm (Length)
Chest Belt: 66cm(Length)
Total Net Weight: 108.8g
 
Package includes:
1 x Heart Rate Monitor Watch
1 x Chest Belt aeProduct.getSubject() aeProduct.getSubject() aeProduct.getSubject() aeProduct.getSubject() aeProduct.getSubject() aeProduct.getSubject() aeProduct.getSubject()