Bang & Olufsen Beoplay H8 Wireless On-Ear Headphone Active Noise Cancelling - Natural 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.