E11 1.2M Stereo Sound wired headphones

Microphone sensitivity :-47dB±5dB, 

frequency response :20Hz-20KHz, 

speaker sensitivity :90dB±5dB,

 impedance :16Ω±15%, 

rated power :3mW, 

speaker size :Φ10mm, 

headphone plug :3.5 silver needle/internal and external shaping,

 headphone wire length :1.2m, 

headphone color: multicolor, 

headphone characteristics: sliding Tuning, 

earphone material: Plastic in-ear /TPE wire