Ok. How do you compare it with SHE3800 in terms of Bass and Warmness and also clarity? Or may be in compare with Monk+ and Qian25 which you have so not sure if you have listened to SHE3800 or not.
Here's my initial comparison of the Standard & Balanced Monk+, and the Qian25 & Qian39 - http://www.head-fi.org/t/812853/absolute-best-budget-earbuds/720#post_13339344
As far as comfort and fit (for my ears), the Langsdom T16 comes with some plastic "J" shaped ear-hooks to hold them in, so they stay in place.
Otherwise, the most comfortable earbuds of this comparison are the Qian39.
The Monk+ and Qian25 have a larger housing, and aren't quite as comfortable or secure. Wearing the cables over-the-ear does help.
Well, there was a fair amount of time between when I last heard the Langsdom (around Christmas of 2016), and when I received the Monk+ and Qian25 (13-MAR-17) - so I'm relying on memory (is that really very wise, at my age?
I seem to remember that the Langsdom sounded more similar to the Qian39 - having good Bass, but not as much as the Qian25 or Espresso (Balanced) Monk+; the Midrange was clear; and the Treble was extended. I didn't really listen to them too much, since I had bought them for my Dad.
I'm not sure how much my Dad uses his Langsdom T16 earbuds, because I think he decided he prefers a couple of the earphones I got for him.
As far as my tastes - I bought the Monk+ with Android controls for my phone, since the slide-type volume control on the Langsdom cable doesn't actually change the volume of the phone.