QKZ DM9 HiFi Metal Earphones

Material: Metal CNC Zinc alloy
Weight: 15g
Speaker: 9.2 mm NdFeB speaker
Speaker Power: Rated input power: 3mW, Maximum input power: 5mW
Impedance: 16Ω±15%
Speaker Sensitivity: 94±2dB (at 1KHz 1mW)
Speaker Frequency Response: 20-22K Hz
Microphone Sensitivity: -42dB±3dB1kHz, 3V 0dB=1V/pa
Operation Temperature: -10 Celsius — +40 Celsius
Function: Play / Pause, Answer / Off, Noise Cancelling, Microphone