NO STARS AT ALL, IF I COULD GIVE -5 I'M SHORT!! These people in this kind of stores are thieves, never trust a good deal in Chinatown, specially in CHINATOWN ELECTRONICS SAN FRANCISCO (I bet the same kind of employees are in the other branches) they offer you an excellent deal (that's what they try to sell you) but at the end they end up stealing your money. There are no refunds, plus there must be no guaratees, I bougth something there, when I wanted to return it and exchange it for something else (they offered me a nikon battery for $180 insane!! it cost 65 in bestbuy and even cheaper online in amazon!), the latino man who was there was super rude and said I'm not going to help you and get out of here, this kind of idiots work on these stores, the seller (a white guy with a swiss accent) a wolf dressed as a sheep looking for a victim. Watch out and be careful. I will rate it with no stars at all but I can't.