Detailed Product Description Detailed DescriptionProduct Code: DLS-209Product Name: Dalisong earphone,earphone,stereo earphone,new style earphone, earphone,handsfree,mobile phone earphone,mobile handsfree earphone, stereo earphoneProduct Brand: DalisongDescription:1. Sensitivity at 1KHz : 110+/-3 dB;2. Impedance : 16+/-15% Ohm;3. Speaker dia : 10mm;4. Mylar : 6µ;5. Frequency response : 230-20KHz; ...