OEM or Original equipment manufacturer means the pack without manuals, instructions and faaltu maal etc. It only consists of the company manufactured item (headphones), and buds anc basic accesories etc. with the Original Manufacterer's Stamp on it. These are directly from Manufacturer without going to retails.manu1991 said:Am interested in the OEM pack but what exactly is it , are they reliable ? and why exactly are they so cheap ?