QKZ KD4 Dual Drivers HIFI Wired In-ear Earphone Earbuds With Microphone

Features: 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 Type: Piston In-Ear Earphone Technical Specification Material: PC Mini Dual Driver Weight: 20g Speaker: 8 mm NdFeB speaker Mini Dual Driver Speaker Power: Rated input power: 3mW, Maximum input power: 5mW Impedance:1615% Speaker Sensitivity: 963dB (at 1KHz 1mW) Speaker Frequency Response: 20-20K Hz Microphone Sensitivity: -42dB3dB1kHz, 3V 0dB=1V/pa Operation Temperature: -10 Celsius --- +40 Celsius Function: Play / Pause, Answer / Off, Noise Cancelling, Microphone Cable length: 1.2m Package Included: 1 x QKZ KD4 Dual Drivers HIFI In-ear Earphone