My dear brothers. The only indication to know that your phone is a pre-order one or not. Make your Samsung account. Then click on the benefits tab. If buds 2.pro redeem.option is there than redeem your buds by filling the form and entering the voucher code. Even no one can fraud you. If your code was not accepted than it means it was used before. If everything goes smoothly you will get your buds after 14 days.approx
