JBL Tune 520BT - Wireless On-Ear Headphones, Up to 57H Battery Life and Speed Charge, Lightweight, Comfortable and Foldable Design, Hands-Free Calls with Voice Aware (White) S/M Draw a circle around an

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automatic switching

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sleep and heart rate and then see it all in one place with the Samsung Health app

a 15-minute charge offers up to 2

JBL Tune 520BT - Wireless On-Ear Headphones, Up to 57H Battery Life and Speed Charge, Lightweight, Comfortable and Foldable Design, Hands-Free Calls with Voice Aware (White) S/M Draw a circle around anThe JBL Tune 520BT headphones stream powerful JBL Pure Bass sound for up to 57 hours, thanks to the latest 5. 3 BT technology. Quickly rechargeable, they sit comfortably on your head even after hours of listening pleasure. With a flat folding design, the JBL Tune 520BT easily fits in your backpack to follow you everywhere. JBL Pure Bass Sound: The JBL Tune 520BT features the renowned JBL Pure Bass sound, the same technolgy that powers the most famous