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China Earphone for MP3 Manufacturer,Promotional Custom Imprinted Earphone for MP3,Advertising Earphone for MP3,discount Earphone for MP3 supplies |
* Drive Cell: Φ15.4mm Diameter speaker, 6U Mylar * Conductive unit: Φ3.5 Alloy Pin Head * Rated power: 3mW * Sensitivity: 115±3dB * Impedance: 32±10%Ω * Frequency response: 20-20KHz * Distortion degree: ≤1%