Poly (Plantronics + Polycom) Plantronics BackBeat PRO 2 Headphones - Wireless Noise Cancelling - Black Tan

* Rich Immersive Audio: From music to movies - let Backbeat Pro 2 pull you into the richness and definition of quality audio. Enjoy high notes (crisp sound), mid-tones (natural sounds) and deep powerful bass delivers low notes with minimal distortion * Use and Battery Time: Enjoy your listening time taking you through the longest workdays or redeye flights with up to 24 hours of music, movies and calls on a single charge. Connect to two devices at once and easily switch as needed fro concentration to conversation * On Demand Active Noise Cancelling: Switch on active noise cancelling with one touch to minimize ambient noise and silence the world around you * Stream Audio: Up to 10 meters/30 feet from your Class 1 Bluetooth device * Compatibility: Talk/Stand by Time - Up to 24 hours talk and listen time; 6 months standby. Bluetooth V4.0 - Headset/Hands-Free Profile HSP 1.2 and HFP 1.6 (Wideband HD Voice); Class 1 BT Radio. Charge time - 3 hours for full charge. Microphone - Boomless dual microphone with DSP