Color/finish: gold tone Design details: Adaptive Active Noise Cancellation - auto adjust to your surroundings. 40mm Drivers with neodymium magnets. Customize preferences with Beosonic Tuning in Bang & Olufsen app. Center relief comfort zone on headband. Soft lambskin and memory foam ear cushions. Form-fitting fabric case protects headphones while not in use. Up to 35 hours of use with ANC enabled. Multipoint - 2 active devices concurrently. Frequency range: 20Hz-20kHz. Audio cable with 3.5mm jack. USB-A to USB-C charging cable. Headphones measures: 195 wide x 200 high x 52 deep Carrying case measures: 200 wide x 180 high x 63 deep Aluminum, Leather, Fabric, Polymer, Rubber Imported Your account will be credited within 48 hours after this item ships. The Account Credit is not valid for prior purchases or balances and must be used within sixty (60) calendar days after the Account Credit is deposited into your account (the "Account Credit Period"). Upon expiration of the applicable Account Credit Period any unused Account Credit will automatically expire.