The HA-EC25W fits your ear size and shape thanks to the pivot and slide motion fit. The stable fitting allows you to listen in comfort while exercising without having to worry about them falling out. The HA-EC25W is rated IPX2 for resistance to sweat while exercising. Included open-type ear pieces allow you to hear ambient noise when outdoors for added safety. Remote with Hands-free microphone that controls the volume, play and stop, and answer calls. Add in the convenience of Voice Assistant compatibility. Long battery life with up to 6.5-hour of wireless listening available on one charge  (15-minute charge for 1 hour playback).