Specification
-High sensitive sensor device
-Heart Rate Range
-Strap length:65-95cm
-Maximum wearing size: 120cm
-Weight: About 55g
-Physical dimension : 59*35*12mm
-Waterproof: IPX7
-Battery: about 340 hours
-Wireless transmission: Bluebooth & ANT+
Compatible devices
-iPhone 4S and above, iOS 8.0 and above; Android 4.4 and above
-iPod touch 5 iPad 3/4/Air/mini
-Samsung Galaxy s4/5/6/Not3
-Coogle Nexus 4/5/6/Android 4.3
-Cycling computer devices support ANT+,such as Garmin,Polar,Bryton and more
-BLE devices Garmin Watch（Support ANT+）
Package include
-HR40 *1
-Chest Strap *1
-CR2032 button battery *1
-User Manual *1
