Product description:

OKRA0290BNS800F6 is a 2.9 inch black and white color E-ink display,   296x128 resolution, communicated through SPI interface,with embedded controller (COG package) and waveform stored on-chip, supports 2 grayscales   and partial refresh.                                                                                                                                         

Advantage:   Ultra-low power consumption, viewing angle close to 180 degrees, readable in sunlight.It is an excellent choice for applications such as shelf labels, smart labels, wearables, smart home applications, industrial instruments, smart cards and other related products.