Bang & Olufsen Beoplay H8 Wireless On-Ear Headphone with Active Noise Cancelling - Grey Hazel Bang & Olufsen Signature Sound with Active Noise Cancelation (ANC).Connectivity Technology: Wireless Aluminum touch interface with complete control to skip tracks, hit play and pause, control volume and answer calls Up to 14 hours of battery life with ANC and Bluetooth Lightweight - only 255 grams Available in black, gray hazel, and natural. Circle clockwise or counter-clockwise for volume adjustment. At just 255g, BeoPlay H8 is one of the lightest wireless active noise cancelling headphones on the market