Hmm, it's a little tricky to guess going from that website, Hassan. FiiO doesn't currently have an official presence/importer to Pakistan but that wouldn't necessarily stop StoreMass from buying them from one. The main alarm bell ringing is that the E11 was discontinued quite a while ago (to be replaced with the E11K and then the A3) but again, that doesn't necessarily mean these E11s are fake. It probably boils down to how much you trust the website. They claim a 3 day returns warranty so if you buy it and the box doesn't have a registration number (found under a foil sticker that you scratch off) then send it back.
A further solution would be to buy it (or the modified A3) from a reputable eBay/Amazon seller/Online shop and use a forwarding service like
https://pkship.com/ if you want to be sure.
That is really nice that you replied.... I am sing ath ws55 on my amazon fire phone and the sound is just not loud(better with iPhone 5s) but I think I need a amp/dac (portable) idk exactly... can you recommend one or do I reaaly need one? I chose a local store as they don't cost additional/shipping charges.
If I order it from usa through the site you mentioned the price will be bundled with additional charges and I fear it may exceed $100. Also, is fiio A1 a good amp/dac for ath ws55? Is its price $27 only? Because a local store here is selling it at $110!
$sorry to ask again but please reply as I don't know much about amps/dacs/headphones