An indicator shows you when the device has low battery.
14% have it
16. sweat resistant
Resistance to sweat makes it ideal for use while doing sports.
13% have it
17. has an on-ear form
This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.
23% have it
18. Weather sealed
Device is protected with extra seals to prevent failures due to any kind of weather.
5% have it
19. has an earbud form
The earbud form is ultracompact and lightweight, with little or no interference with earrings, spectacles, hats, or hairstyles. For some people it is more comfortable than in-ear form.