If you have to buy in Turkey, rather than the UK. I suggest the electronic shop on first floor (next to cinema entrance) in the shopping 'mall' ..... gawd I hate that word!! The prices are reasonable and they carry a good stock of various items, helpful staff, all leading brand names you'll know from the UK and no knock off kit you see around the market. However, it will have a Turkish plug, the guarantee will only be any good in Turkey, and you will pay more - not much more - than you do in the UK.