2 inch thermal printer head Seiko LTPJ245G-S384-E compatible Printing speed up to 90mm/s Low battery voltage 4.2V~9.0V Durable print life at least 50km
110mm thermal printer mechanism Compatible Seiko LTPV445 High speed print up to 100mm/s Platen latch function for easy release Vertical motor form design Auto loading paper insertion Easy paper operation