Up your tempo with these Plantronics BackBeat FIT wireless sport earbuds. Secure-fit ear loops and ear tip stabilizers stay in place while you're moving, and 6mm drivers produce rich sound at 20Hz - 20kHz. Attach these Plantronics BackBeat FIT wireless sport earbuds to your shirt via the two-in-one stability clip.Keep listening from workout to weekend with the BackBeat FIT 350 wireless earbuds. Their lightweight, sweat-resistant design and impressive battery life make them a solid choice for any activity. From Plantronics.