B&O PLAY by Bang & Olufsen Beoplay H8 Wireless On-Ear Headphone with Active Noise Cancelling, Bluetooth 4.2 (Argilla Bright) Premium, light-weight, wireless, active noise cancelling on-ear headphones. Connectivity Technology: Wireless Bang & Olufsen Signature Sound no matter if active noise cancellation is turned on or off B&O PLAY products come with a 2-year limited warranty only when purchased from an authorized dealer including Amazon.com (indicated by ships from and sold by Amazon.com). Aluminum touch interface on the right ear cup gives you complete control of your music and phone calls Up to 14 hours of battery life with active noise cancellation and Bluetooth turned on. 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