I'd skip these. I'm very gentle with my headphones and I've had 2 pairs of the MS-01s and the wood and metal always end up coming apart. Sucks, they sound great but don't hold up.
DtotheatothevtotheeI've had 2 pair of the ts03 and both pair have now failed... 1st was an unknown issue that caused the one bud to stop working, kudos to massdrop for replacing them, especially because they were an upgraded prize in a bluebox. The 2nd pair the wood and metal separated on the left bud and it no longer works. They do sound great but are not durable at all.