1, retractable earphone with magnet 2, good quality and competitive price 3, ROHS and CE 4. 3.5mm plug 1, retractable earphone with magnet2, good quality and competitive price3, ROHS and CE 4. 3.5mm plug5, speaker size : 10φmm6, ImpedanceL 32Ω7, Sensitivity :115dB/mW8, Frequency Response: 20-20000HZ9, Cord length : 100cm retractable earphone with magnet