Nah, I did drop on the £35 Turbines though. Will see how they go but I'm not expecting miracles.
I thought I'd inquire on these Turbine Pro Coppers and see what I turned up. Might shoot eBay an email because the advert is very misleading, taking into account what he told me.
The title states they are "Monster Turbine Pro Copper Edition", not "Monster Turbine Pro Copper Edition REPLICAS", which is very misleading so you might be able to do something about it. The only hint that they might be replicas is in the product description (notice it's right at the very bottom ¬_¬) where it says they are "AAA quality", but that could've easily been interpreted as "A+ quality" for someone unfamiliar with the term (I had to Google what it meant) and it still doesn't specifically mean they're replicas/fakes (from wikipedia: "AAA, or Triple-A, may be a three-letter acronym or may just mean something that is high-quality, premier, or excellent.").
Did you already purchase them from him? You should report him to eBay/Monster as selling fake merchandise and not clearly stating that they aren't the official product.