Js-8133 metal computer earphone teaching earphone durable earphone Internet bar earphoneThe sound quality is beautiful,Wear comfortable.Streamline design, with metal spray shell, lengthening and thickening wiring. Long-term mass production processing supply. We have them in stock at any time.

Volume:67 x58x78,100article/aGw: 28.5 KGS Gw: 27.50 KGS 

The resistanceResistance:32 ohm(1 KHZ)

Sensitivity:102 db S. p. L at 1KHz

Maximum input power:300 mw

Frequency response range: 20 Hz - 25000 Hz

Wire length:about2~3 m

microphones: 9.7 mm - 58 X6.7 db + 2 db

Connecting plug:The 3.5 mm

Welcome foreign businessmen to purchase in large quantities!