A4Tech HD Ceramic Earphone (MK-790)

Features:
•  Scratch-Resistant Ceramic Housing deliver All in Brilliant Hi-Def Audio with Enhanced Bass
•  High-Performance Driver Unit
•  8mm Superior Driver Unit for Stunning Clarity and A Bass Impact You Can Feel
•  Unique Tangle-Free Earphone Cable
•  Soft TPE Materials, Flexibility, Tangle-Free, and Durability!  And You Could Say Goodbye to Messy Cable Now
•  Gold-Plated 3.5mm Plug
•  Provides Exceptional Corrosion Resistance.  Can Be Used with Mobile Phones and Tablets.
•  In-Line Microphone and Remote Control pick Up/Hang-Up, Play/Pause

Audio Specs

•  Driver Unit:  8mm
•  frequency:  20 - 20000hz
•  impedance:  16 Ohm
•  sensitivity:  94 Db
•  cable Length:  1.2m

Microphone Specs

•  Frequency:  50 - 16000hz
•  sensitivity:  -42 Db