mp3/mp4 earphone 1.comfortable visual effect 2.competitive factory price 3.ISO&RoHs standard 4.OEM&ODM
2012 In-ear 3.5mm mp3/mp4 earphone(DDL-D-001)
earphones ' feature
1. Plug: four knots stereo plug
2. Cord Length:120cm
3. Frequency response:20-20KHz.4. Impedance:32 ohm+/-10%5. Sensitivity: 58db +/- 2db
6. Sensitivity(S.P.L): 113dB
2012 In-ear 3.5mm white earphone with pvc cable(DDL-D-001)
| Test requirements about earphone | |||||
| Tensile test | >2500 times | ||||
| SR tolerance | >800g/10sec,Don't loose | ||||
| Compressive resistance | >3kg/10sec | ||||
| Sway test | 50g/60 degrees30 times/minute >5000times | ||||
| Plug life test | >8000 times | ||||
| High temperature resistance test | 500v/s | ||||
| High temperature resistance test | <2730hm/1KM | ||||
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HOW TO USE THE earphone
2012 In-ear 3.5mm mp3/mp4 earphone(DDL-D-001)
