The built-in hypercardioid unidirectional microphone recording can identifies the clear main sound, reduces off-back noise, and enhances learning concentration.The microphone rod can be rotated by 120 degrees, and the distance between the recording rod and the mouth can be adjusted according to your needs.Made of the premium ABS material, the product is durable, lightweight and sturdy. The built-in 30mm neodymium boron magnet and biological composite titanium film constitutes the loudspeaker unit, which has powerful sound, sufficient sound quality resolution, and the sound is not harsh.The length of the product is 15cm, the width is 6cm, and the height is 18cm.It is suitable for children and students for online classes, which can connect with PC, laptop, computer, phones, etc.Item Name: HeadsetMaterial:ABSSensitivity: -44±3dbFrequency Response: 20Hz-20kHzImpedance: ≤ 2.2KΩPlug Type: Single Pug 3.5MMSpeaker Diameter: Ø30mmOutput Sound Pressure: 98dB±3dbMicrophone: Ф6.0x5mmCable Length: ≥2.0mSpeaker Resistance: 32ΩMicrophone Directivity: Unidirectional MicrophoneMicrophone Boom Length: about 18cmSize:15cmx6cmx18cm/5.91inx2.36inx7.09inNotes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension differences due to different manual measurements.Package Includes:1 X Headset