Features: Lightweight design, comfortable to wear, not tired after long wear Breathable headset, comfortable and not stuffy, more suitable for long-term wear 3D surround sound.Adjustable headband, suitable for different groups of people The microphone automatically reduces the interferences background, and the sound is clear and loud Environmentally friendly material, high strength, durability and resistant to pulling Specifications: Component:ABS Size:Approx.160x135mm/6.29x5.31inch Frequency response ranges: 20Hz-20KHz Sensitivity: 110dB Impedance: 32ohms Socket: 3.5mm/USB/USB+3.5MM Speaker size: 32mm Package Includes: 1Pc Telephone Headset note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.