1.Cost - effectiveness: Self - developed modules, with costs as low as one - tenth of the module cost. 2.Reading efficiency: The multi - line design reduces frequent page - turning (for a complete paragraph, 4 lines per page with 128 characters in total, 32 cells per line * 4 lines). 3.Ergonomics: The line width is adapted for two - hand reading (each line of 32 cells corresponds to a width of 19.2 cm, avoiding frequent arm movements). Portable design: Dimensions of 232mm * 70mm * 12mm (similar to a small tablet), and the weight is as light as less than 220g. 4.Battery life: It can last for more than one day.
