I bought these headphones in Hong Kong last month, then I was given a better pair as a hand-me-down from a friend! So no need for the new Beats.
Bought them new for about 900rmb, selling for 600rmb.
They've only been worn a couple times, never even taken out of the house. As good as new.
They are collapsible and come with a carrying case.
Here's an Amazon link for specs: https://www.amazon.com/Beats-Solo2-Wired-Ear-Headphone/dp/B00IYA2YRK
The pic below is what I have, the box I abandoned before flying back from Hong Kong.