I think you'll find they won't be much better than a cheap pair
Phones coming with CE-RH2 are exactly the same as these coming with SL-C3200. Only branding is different - SL-C3200 comes with black phones with Sharp logo, CE-RH2 comes with metalic color and with a pair of foams.
I cannot say, that they play bad. The sound is nearly comparable to to my old Sony MDR-A22, one of the best small phones 15 years ago.
They look more than similar to Sennheiser MX 400.