5.8mm driver featuring JBL Pure Bass sound provides a powerful punch to all your playlists. Discover the freedom of a wireless lifestyle while on the go. Now listen to music, manage your calls or work out without the fear of tangled wires interrupting your groove.Hands-free Stereo Calls.  16 Hours of Combined playtime (4 Hrs on earbuds & 12 Hrs on charging case)under optimum audio settings. 15 minute quick charge gets an additional 1 hour of music playback.