Bluetooth BLE technology
Power:3V Lithium Battery CR2032
Bluetooth Smart & ANT+ DUAL heart rate chest belt is not only compatible with iOS 6(iPhone 4S, iPhone 5, NEW iPod Touch (5th generation), the NEW iPod Nano (7th generation), iPad (3rd and 4th generations)) and Android 4.3 or above with bluetooth smart support . Some sport watches with BLE smart support such as Polar loop and so on can also be used, it's but also compatible with most ANT+ sport watches, cycle meters, and other ANT+ wireless devices.
This heart rate chest belt shares Apps,make your smartphone an all-in-one training device, without another monitor. Great for runners, cyclists, and other fitness lovers.
Some popular apps recommend :Wahoo fitness,Strava, RunKeeper, Endomondo, Runtastic and BLE Heart Rate Monitor and so on.
Some polular ANT+ devices : Garmin FR60,Garmin Edge 500, Garmin vivofit watch etc.