QKZ DM7 Metal Earphone
QKZ DM7 মেটাল ইয়ারফোন
Brand- QKZ
Speaker Frequency Response: 8-22K Hz
Microphone Sensitivity: -42dB±3dB1kHz, 3V 0dB=1V/pa
Operation Temperature: -10 Celsius +40 Celsius
Function: Play / Pause, Answer / Off, Noise Cancelling, Microphone
Speaker Power: Rated input power: 3mW, Maximum input power: 5mW