Model No.:MRJ0711
Product Origin:China
Brand Name:SJ
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Description:Features: 1) This product is super miniature designed, and clearly sound quality, bass effect and the high SPL, wide-band, function stability, and quality credibility 2) Can be used extensively for PHS, GSM 3) Rated input: 5mW 4) Max. input: 10mW 5) Frequency range: 300 - 3,400Hz 6) Impedance at 1kHz: 32±15%Ω 7) SPL at 1kHz (100mV): 107±3dB