No chest strap required. This breathable armband design offers more comfort and easier using.
This rechargeable battery allows you to workout for up to 20 continuous hours.
LED lights make it easy to see if your device is connected or working.
With IP67 waterproof and sweatproof construction, you could wear this CooSpo armband in any conditions.
Works with most popular health and fitness apps including Wahoo, Strava, Endomondo, IpBike.