retractable earphone style: in ear provide the excellent bass and let you enjoy the music.

retractable earphonestyle: in ear

specification of earphone

Transducer:5UImpedance:32Ω±15%Sensitivty:113±5dB at 1KHz,5mW,Frequency respond:20Hz~20KHzRated Input Power:5mWMaximum Input Power:10mW

any style and shape can be customized. OEM is welcome

retractable earphone