I recently bought a HD8XX it comes with hard case which you see in the picture and Heart Audio cable with 4.4mm termination adapter, this is the only cable I bought it. Unfortunately the original buyer lost the box with original cable which comes with HD8XX.

I tried it for few days and the intention was to use it for gaming but I still prefer my IEMs which are more convenient to use and I can take them on the move. I compared the sound with friend's HD800S and noticed 8XX has bit more bass and treble is bit relaxed, sound for orchestral and acoustic music is awesome.

I wish I could keep it but want to invest on gaming PC enhancements, hence want to sell these, condition is very good no scratche or marks I can see.