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DANYIN DT326 Head-mounted Desktop Computer Children Learning Wire Headset with Microphone, Cable Length:1.8m, Style:Single Hole Four-level(White) Tag-LCD Screen Brand new and high quality1. Impedance: 32 ohms 2. Cable length: 1. 8m 3. Weight: 110g 4. Material: leather 5. Purpose: ordinary earphones, voice earphones, computer earphones 6. Sensitivity: 35db 7. With or without microphone: Yes 8. Sounding principle: moving coil 9. Plug type: straight plug type 10. Plug diameter: 3. 5mm 11. How to use: head mounted 12. Frequency response: 20Hz 2KHz 13. Horn diameter: 30mm 14. Headphone output source: PC computer Specification: Package