Description of MX660:
Frequency range :18Hz-21Hz.
Resistance:32 Ohm.
Sensitivity:114dB.
The length of the cable:1.1m.
There are white color,silver color for choose.
MX660 earphone is a succession of practical principles, not to win the look gimmicky. After its new console the impression that the voices of surprise. And its easy to drive and also makes MX660 earphone recently become a best choice of player in the end market.
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