2 x 1 4 80 July 8, 2019 16 32 64 128 4 x 2 x 1 80 0 2 1 4 x 80 thermal paper 2 1 4 x 80 thermal receipt paper 800 x 1 4 2 4 mũ 2x 1 4 mũ 2 x 80 2 xl reality show 8 2*2 is 4