High Performance Patent Dual Balanced Armature Receiver for hearing aid of Earph
Product brief information:1. High Performance Patent Dual Balanced Armature    Receiver2. High resolution 3. Magnetic radiation sheilded 4. Tiny Features:  1. High output, Low energy consuming to extend the life 2. Enhanced bandwidth 3. Low THD level  4. Waterproof & RF radiation shielded  5. Substantial mechanical-shock resistanceSpecification:1. Sensitivity at 1000Hz : 105db2. Impedance range: 3-1000 ohm3. THD at nominal drive(%): 1255. Outline: Square
Description:Balance Armature Earphone1, High class metal earphone2, Single, double or multi-drivers3, OEM is acceptedHigh Class Metal Single Double Balance Armature Earphone1, Can be used for iPo