Driver Type: Dual Dynamic
Frequency Response: 10Hz-20KHz
Connector: Gold-plated L-plug
Warranty: 1 year
The M-Duo comes with the MEElec packaging similar to the A161P. The accessories include 6 pairs of eartips, a clamshell case, and a shirt clip. A good amount as always from MEElec.
The M-Duo is pretty much built like a tank with its metal housing and Kevlar-reinforced cable. The housing is solid yet very lightweight. The cable is also very well built and easy to manage and has a remote/mic built into it. It should last a long time with normal use.
The M-Duo has a fun, aggressive sound with plenty of bass without sacrificing the overall sound. Treble is aggressive and can be a little harsh at times but nothing unbearable. Midrange is very clear and detailed. Bass hits hard but is not overwhelming and has plenty of rumble. Soundstage is decent. Overall a very good sounding IEM especially for its price.