Just got this picture of a link, has seen an illusion: this is not a headset, this is two of as a headset. A variety of match colors of the headset is very common, but in a pair of headphones to use two kinds of color of the headset is very rare. CL721 is a moving coil object type earplugs, with standard 3 kinds of different size can adapt to a different set of silica gel to the ears of the way. link is and the exterior of most of the moving coil is little object, a layer of light the ear plugs the paint, but the color of the paint with the color of the frames is not too, have off color, because have off color so also make earplugs looks more have administrative levels feeling, unapt too drab. The outside of the ear plugs with vanguard "Pioneer" logo, logo used the anaglyph style design, look very solid. link frames and wire connected with the place very closely, line is also fairly thick strong. The author forcibly tugged a referral, because the wire elastic, so can still pull out a section, but to let go and will return to go after, we can see that the headset any good resistance wire pull ability.