HTC ONE M8 - Lost Earphone Replacement

Hi Guys,

A mate of mine recently borrowed my HTC ONE M8 Earphones and lost them in the process.

I really loved these headphones, the best sounding out of box I've ever had.

He's offered to replace them, I've called Vodafone and HTC and the only way to get new ones is buying a new phone.

Can anyone help estimate what these would cost when I'm looking around for him to buy me some?

Any recommendations on headphones in that range would be much appreciated.

Thanks,

Peter