Free sample cheap handfree wired earphones headphones earphone

Speaker unit:

10mm in diameter

Speaker impedance :

16Ω 

Sensitivity :

100+ -3db 

Audio frequency response :

10khz-20khz/+ -3db 

OEM/ODM:

ACCEPT

Feature :

Reduction the outside noise 

Line control , ios and android system is fully compatible 

Unique ergonomic design ,wear more comfortable ,solve ear discomfort pain problem 

Caress ,deliver healthy melody !