chao moi nguoi . cho minh hoi chut nhe ? minh nap nhac cho chuong cho 1200 duoc roi nhung khi goi den thi may chi do 1 hoac 2 lan la goi den ko rung ko chuong nua la sao vay cac ban. mong moi nguoi ai da lam duoc roi xin chi bao vi minh moivao nghe ma . cam on moi nguoi nhe. thong cam may ko co tieng viet