Crafted in anodized aluminum and leather. Noise-Cancelling. Two ANC modes for clear, expansive sound in any environment. Built-in microphones. Up to 24 hours of battery life. Charges for to up to 12 hours in 15 minutes. 20+ meter/65+ foot AptX Bluetooth 4.2 range. Custom 40mm Beryllium drivers. Includes a 3.5mm audio cable and flight adapter which allow passive audio available when wireless is disabled