As some people had comfort and fit problems with the DN-2002, it will now come with various soft silicone ear hooks by default.
Installation is fairly easy but imho one has to be careful not to lose the ear hooks or ear tips by accident as the tips and hooks aren't attached to any lip/collar. They stay in place well though and don't rotate unless you want to.
I've personally never had any fit/comfort problems wearing the DN-2002 with the cables down, but when wearing these IEMs with the cables around the ears, the cable connector put pressure on a part of my ear that felt uncomfortable after some time (a workaround for me was to turn the in-ears by ca. 90° which worked well as long as I didn't pull the cable which would then rotate them to the uncomfortable position again). With the ear hooks, the part that put pressure on my ears when wearing the cable around the ears is now a bit more distant and doesn't touch my ears anymore and I don't need to rotate the ear pieces by 90° to get a good over-the-ear fit/comfort.
Image 1 & 2 provided by DUNU Topsound, image 3, 4 & 5 taken by yours truly.
width of the rings: ca. 1.5 cm
length of the hooks alone: ca. 2 cm
cable down
cable around the ears