QKZ VK1 Colorful 4DD In Ear Earphone Hybrid Headset HIFI Bass Noise Cancelling Earbuds

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 Headphones Technical Specification Material: Pc Weight: 20g Speaker: 9 mm NdFeB speaker Speaker Power: Rated input power: 3mW, Maximum input power: 5mW Impedance: 3015% Speaker Sensitivity: 1082dB (at 1KHz 1mW) Speaker Frequency Response: 7-40K 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 VK1 Colorful 4DD In Ear Earphone