Features: - Quality optimization ,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 Specifications: - Type: Piston In-Ear Earphone - Technical Specification - Material: PC Mini Dual Driver - Speaker: 8 mm NdFeB speaker Mini Dual Driver - Speaker Power: Rated input power: 3mW, Maximum input power: 5mW - Impedance:16?±15% - Speaker Sensitivity: 95±3dB (at 1KHz 1mW) - Speaker Frequency Response: 20-20K Hz - Microphone Sensitivity: -42dB±3dB1kHz, 3V 0dB=1V/pa - Operation Temperature: -10 Celsius --- +40 Celsius - Function: Play / Pause, Answer / Off, Noise Cancelling, Microphone - Cable length: 1.2m What's in the box Package Included: - 1x Earphones - 1x Storage bag