E Ink Color B/W/R, Resolution 600 x 448, 3 Buttons for Page up/ Confirm/ Page down, Front IP65, Sub-GHz (915MHz) frequency, Ultra low power consumption, Easy battery replacement
E Ink Color B/W/R, Resolution 600 x 448, 3 Buttons for Page up/ Confirm/ Page down, Front IP65, Sub-GHz (915MHz) frequency, Ultra low power consumption, Easy battery replacement