Sennheiser OMX-80 and OMX-70! Whats the Difference??

[TestSpecimen]

I've been looking for headphones for my sister to go to the gym with and came upon the Sennheiser sport range of headphones.

I have been looking at the OMX-70 sport and OMX-80 sport II.

Although I understand that the OMX-80 is the replacement for the OMX-70 I can't find any information about what improvements have been made, as apart from one being green and the other being orange they look identical and the technical spec is the same.

I hope someone can help me out

Mike

 

[TestSpecimen]

It seems like no one has a clue then lol. (or no one cares

)