Product Name: Headphones 1. Frequency response range: 20Hz-20KHz; 2. Sensitivity: 110dB; 3. Support system: compatible for Win7/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 13 x 16 x 4.6cm, the length of the wire is about 1.6m; 10. Package size: 17.0cm x 7.0cm x 19.5cm/6.69 inches x 2.76 inches x 7.68 inches; Packing list: 1 x earphone 1 x manual 1 x packing box Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don&#39;t mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks. <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

Sy490 Wire-controlled Computer Usb Headphones With Microphone Office Home Network Class Teaching Aids 3.5MM earphone