The Musen MS-K20 in black are wireless on-ear headphones designed for versatile listening, offering both Bluetooth connectivity for cordless freedom and a 3.5mm mini jack for when you prefer a wired connection. You can move around your space comfortably within a wireless range of up to 10 meters, making them a practical choice for home or office use. These headphones feature a distinctive design with an integrated light ring on the ear cups, adding a modern visual touch to the sleek black hardware.