Truoc mod thong cam em viet bai nay khong co dau vi may tjnh dang hong phai viet bang dt chuyen la the nay em nhan cay 6700 tau khach keu thay loa ngoai em thay xong thi test ok dong nay 2 loa nhung lai khong thay song dau vao do mang cung k dc fomat cung not ok luc dau khach mang den em van thay co song goi 900 dc bay gio no nhu the la sao cac bac giup em voi