Toi co nhu cau dung dan karaoke de giai tri tai gia, da di tham khao vai cua hang de tu van nhung van dang phan van chua biet loai nao dung tien loi nhat, uu, nhuoc diem cua nhung san pham nay. (Le Van Loi)
| Doc gia co yeu cau tu van ve mua sam, xin gui . |
Cac anh chi nao co kinh nghiem, da dung dan karaoke o gia dinh roi, tu van cho toi cung nhu moi nguoi cung nhu cau nhu toi voi.
