worn on the chest to monitor your heart rate during workouts. It can be

adjusted to fit most chest sizes through a convenient soft strap. Your

heart rate is transmitted to a compatible device with the Micoach、

Runtastic、RunKeeper  app through Bluetooth Smart (Bluetooth v4.0)

wireless technology. More accurate and efficient than most wrist

monitors, the OCATO Bluetooth 4.0 monitor can be used for measuring

your heart's performance in nearly any physical activity: jogging,

running, cycling, even swimming! By monitoring your heart rate, you

can adapt your workout to strengthen your cardiovascular system,

increase stamina, burn fat or adhere to rehab restrictions. No adapter

necessary, as all data is shared wirelessly via Bluetooth technology

- up to 10 meters/33 feet away!

：IPHONE 4S, IPHONE5, NewIPAD & IPAD min