Nu Republic Starboy Wireless Headphone with Mic (Black) Style name:Starboy   Dress your ears with the best quality sound, a luxurious metallic finish and improved ear cushions, a whole new look for a headphone. Bluetooth headphones with over-ear design that covers the ears completely providing exceptional comfort and even better noise isolation. Control music playback from the headphones and answer your calls. Sport 50 mm Neodymium Drivers with Multiple-Transition Diaphragms ensure that they are as strong and as light as possible. This means that the diaphragm is stiff and strong enough to resonate clear, high-fidelity sound throughout the audio spectrum, but also light and precise enough to ensure ultra-fast response times and accurate sound reproduction. Driver: 50 mm dynamic neodymium magnet driver, impedance: 32 ohm, frequency response: 18Hz to 23KHz Sensitivity: 100 plus/minus 3dB In-line microphone, removable 1.2 meter flat tange free cable.