AKG K 845BT Bluetooth Wireless On-Ear Headphones, White Specially-selected 50mm drivers and a closed-back design deliver exceptional studio-quality sound Bluetooth and NFC connectivity allows you to connect with your content in an instant Control buttons conveniently located on the ear-cup allow you to command your sound effortlessly Super-soft, protein leather ear cushions allows for long-term listening in comfort A 2D Axis folding mechanism allows the K845BTs to easily fit into a carrying case