BQZ Z-161 Stereo 3.5mm Wired Handfree Earphone Headset 

Speakers – 14.2mm, Sensivity – 108dD S.P. Lat 1 KHz, Impendance – 32, Frequency responce – 20Hz-20,000Hz, Rated Power – 25mW, Power Cabality – 250mW, Cable Length – 1.2mm, Microphone Unit – 6*5mm-58dB, Plug Type – 3.5mm Stereo