SOYTO SY490 Teaching Office Network Class Student Education Computer Headset, Style: Double Ear Black Separation USB Tag-For Vodafone Volume button & power button

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SOYTO SY490 Teaching Office Network Class Student Education Computer Headset, Style: Double Ear Black Separation USB Tag-For Vodafone Volume button & power button1. Frequency response range: 20Hz 20KHz 2. Sensitivity: 110dB 3. Support system: Win 7 Win8 Win8. 1 Win 10 XP 4. Impedance: 32 ohms 5. Wire: PVC 6. Socket: 3. 5mm USB 7. Speaker size: 32mm 8. Weight: about 88. 9 grams 9. Size: about 13x16x4. 6 cm, the wire length is about 1. 6m Features: 1. Lightweight design, comfortable to wear, not tired after long wear 2. Breathable headset, comfortable and not stuffy, more suitable for long term wear 3. 3D