great surround sound effect: the 40mm magnetic neodymium drivers which have shocking bass and allow hearing the position and footsteps accurately can bring you a vivid sound field, capable of various games. comfortable to wear: skin soft earmuffs are comfortable and breathable for long time wear and have good acoustic insulation to cut out external sounds. thickened sponge support and adjustable head beam are suitable for all sizes head. cool led lighting design: color-changing led lights are designed on the earcups to highlight the atmosphere of the game. you will look super stylish with a nice design. compatibility: suitable for smart phone, laptop, for ps4, and other audio devices with 3.5mm port. for desktop pc, a 1 to 2 splitter line is needed (included). specification: brand name: onikuma model number: k20 loudhailer diameter: 40mm frequency range: 20-20khz sensitivity: 118?3db impedance: 32??15% mic diameter: 6.0 * 5.0mm mic sensitivity: -38?3db mic impedance: 2.2k? directionality: omni-directional working current: ?100ma input plug: 3.5mm 4pin + usb (for led) color: black, camouflage gray, camouflage white (optional) cable length: approx. 2.2m?0.15 package list: 1 * onikuma k20 gaming headset 1 * 1 to 2 audio cable 1 * multi-language user manual