The Naxa Isolation Stereo Earphones with microphone feature 10mm drivers for a dynamic sound. You can make and answer phone calls with the built-in microphone, and the soft, flexible tips provide a comfortable fit while the in-ear design blocks background noise. It comes with additional sized ear cups for a secure fit, and the flat cable also prevents tangles. The Naxa earphones make an ideal addition for workouts or any on-the-go activity, providing you with excellent sound. 
Naxa NE-939 ASTRA Isolation Stereo Earphones with Microphone:
In-ear design blocks background noise
In-line microphone
Flat cable prevents tangles
10mm drivers
Impedance: 32Ω
Sensitivity: 102dB
Frequency response: 20Hz-20kHz
3.5mm plug
Includes additional sized ear tips
Blue earphones with microphone