JBL Free IIs offer JBL signature sound in an intuitive yet smart setup. With no wires and easy to use, the JBL Free IIs are your flexible partner for calls, music and an active lifestyle. Combined with the charging box, you can listen to music for a full day (24 hours): 6 hours of continuous listening from the headphones, plus... 18 hours of backup from the charging box. Instant pairing as soon as you open the box: The JBL Free II earbuds can be used independently in mono or stereo mode to save battery life. The 3 sizes of ear tips are super comfortable and the IPX4 certified design means you can play your music in both sun and rain without worry. Enhance your listening experience easily by controlling your music and calls with the intuitive touch panel on the earbud, so you don't have to fuss with cables.