"BREATHABLE" ELASTIC TEXTILE ARM BAND：Heart rate monitor armband is much more comfortable and convenient than a chest strap, especially over long activities or heavy-duty workouts. Arm strap length 14.8" (upper- arm circumference 7.87"-13.38"). Perfect for indoor and outdoor activities like cycling, trail running, treadmill running, HIIT classes, CrossFit Classes
LED HEART RATE ZONE INDICATOR: There is 3 zones LED colors to easily view which heart rate zone you are in, help you to adjust exercise intensity in time.ZONE 1: pink≤ 130BPM; ZONE 2: blue 130BPM＜ HR ≤160BPM; ZONE 3: red＞ 160BPM
BLUETOOTH 4.0 & ANT+ COMPATIBILITY: Dual-band technology iGSPORT HR60 heart rate arm band allows wireless connection to most smartphones, leading fitness
20-HOUR RECHARGEABLE BATTERY: If you're worried about your Apple Watch's battery life during a lengthy workout (like a marathon), or you'd like more consistent and quick readings, consider pairing it to a iGPSPORT HR60 heart rate monitor. Which is beneficial to improve your health status and enhance exercise skills
ATTENTION: For the most accurate readings, please wear the HR60 on the upper forearm, biceps, or triceps snug enough to not move on your arm, but NOT so tight that it restricts circulation
