Ok, so these are first impressions, I've not had them long enough for a real comfort test yet.
So, the t.bone HD 1800 headphones have actually seriously surprised me. Right from the get go, the experience has been a good one. The unboxing experience was nice as the headphones where well packaged in a very nice case and there were even some other goodies to discover. The first thing that made me actually go wow was the 4m mini jack extension cable. Now, both the extension cable and the one actually connected to the headphones both look like very good quality cable that should last well with rugged use. But what really made me happy was the addition of a little clip on the extension cable that will securely connect both cables and reduce the chance of accidental disconnection. Such a small thing, but something everyone forgets about. Great foresight here.
The next thing is sound quality. I actually bought these for stage monitoring as I do not like in ear monitors. These headphones sound very good to my ears, clear across the range and loud too. I wouldn't try to do a mix on them, but for what I need them for, they should do the trick very nicely indeed.
Comfort and build quality seem pretty good. I've had them on for a little while and they feel comfortable to wear. I'm not feeling particularly fatigued by them yet, but time will tell on that point. The fit is nice and tight, I've done a bit of headbanging whilst listening to some heavy metal/hard rock tracks and they've barely moved! The plastic is of nice quality and should hold up to some hard work. The rotation of the ear cups is nice, though, and this could be my only slight complaint, it would've been nice to be able to click them into the down position. Other than that, they look very good too, so yeah, a fantastic pair of headphones, especially for the price!
TL:DR If you need headphones on a budget, these ones should do the job very nicely!