QKZ DM9 Zinc Alloy HiFi Metal Earphones Original

Quality optimization of exclusive patent, metal composite vibrating membrance
The ergonomic design, nipple grade silicone ear muffs
Ear and tail pipe connection with oblique angle design, comfortable and easy to wear
It has high quality sound, enjoy your life
A perfect gift for yourself or friend
Material: Metal CNC Zinc alloy
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
Function: Play / Pause, Answer / Off, Noise Cancelling, Microphone
Weight: 15g