Plantronics BackBeat PRO 2 Binaural Head-band Black

20–20000 Hz, 32 ohm, Bluetooth 4.0 + EDR Sound shapes your day, so enhance every moment with BackBeat PRO 2 wireless headphones. On-demand active noise cancelling creates an oasis of personal space in a public place at the touch of a button. Ready to roam? BackBeat PRO 2 also gives you Class 1 Bluetooth power with an amazing range of up to 100 meters and up to 24 hours of continuous listening time on one charge, so you can move with a whole new level of wireless freedom.