100% Original Rock Earphone Nano Zircon Stereo Earphone Headset 3.5mm In Ear Headset Earbuds For IPhone Samsung With Mic&Remote
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Speaker: 8 mm (8 mm NdFeB speaker)
Rated input power: 1Mw, Maximum input power: 3mW
Speaker Sensitivity: 93±3dB (at 1KHz 1mW)
Speaker Frequency Response: 20-20K Hz
Microphone Sensitivity: -40dB±3dB(1kHz), 0dB=1V/pa
OPERATION TEMPERATURE: -10Celsius — +55Celsius