1, retractable earphones with magnet 2, good quality and competitive price 3, ROHS and CE 4. 3.5mm plug 1, retractable earphones 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 earphones with magnet