How long is it? :D

I forget which one it was, but I'm pretty sure it was either 6 months or a year

o lol. is it from the manufacturing date or the date you buy?

date you buy it I'm pretty sure

what if you dont got no receipt?

6 months against manufacturing defects from date of purchase. In some countries the warranty is taken care of by the retailer but in most cases you have to provide proof of purchase (sales receipt) to take advantage of a warranty.