<p><b> specifications: </b></p> <p> Model: H-11 </p> <p> Driver diameter: 40mm </p> <p> Impedance: 16Ohm ± 15 ％ </p> <p> Sensitivity: 115 + 3DB </p> <p> Frequency range: 20Hz-20KHz </p> <p> Mic dimension: 4.0 * 1.5mm </p> <p> Microphone sensitivity: -42dB +/- 3dB </p> <p> Microphone impedance: 2.2 kOhm Directionality: All directional </p> <p> Cable length: approx. 2.1m ± 0.15 LED operating voltage: DC5V +/- 5% </p> <p> Working current: below 50 mA. </p> <p> Headset interface: 3.5mm (4-pin) + USB (USB only for LED light).</p> <p><br></p> <p><b> List of packages: </b></p> <p> 1 * gaming headset </p> <p> 1 * 3.5mm headphone splitter adapter </p> <p> 1 * User manual</p>