Hello Teksyndicate,
I'm looking for a very high grade headset/headphones without a mic and is wireless, mostly for studio use.
ya i would say that I'm an audiophile and if your doing studio grade work you should not be using wireless headphones period. You need some thng that can be pluged into a dedicated dac and some thing that will reproduce accurate sounds. Wireless can not do this. If you want proof just try to walk around with a receiver on your head. That said, if you still want wireless sound then this is the best but they are not stereo.
https://store.sony.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921666290086#specifications
if you want quality then you should get http://www.amazon.com/Stereo-Headphones-MDR-Z1000-Reference-Monitor/dp/B00420UAPO
and i use sony mdr-v900hd but the bass is to soft for proper studio use. and not made any more http://www.newegg.com/Product/Product.aspx?Item=N82E16826159086
Sennheiser RS 220 should be the HD 600 as a wireless edition so might want to have a closer look at those. It was endorsed by Jude, the founder of Head-fi too so the sound must be good.