48mm print width 58mm paper width thermal printer mechanism; compatible with Seiko LTPZ245N-C384-E, LTPZ245D-C384-E and Epson M-T173V printer head; 4.2V~8.5V working power; 90 deg. paper path; high print speed 90mm/s max; compact dimension 70.1(L)*21.8(W)*31(H)mm