Sennheiser PXC 550-II Wireless Adaptive Noise Bluetooth Headphones - Black Contents: Accessories in Retail Box. New Opened Box Condition. Description Sennheisers premium headset tailored specifically for the discerning business traveller. This stylish compact and foldable headset delivers exceptional sound quality class-leading adaptive noise cancellation and crystal clear speech clarity. Features Exceptional Battery Performance NoiseGard Adaptive Noise Cancelling Lightweight, Comfortable Design Wireless Freedom Specs Bluetooth: Yes Sennheise