Description
ZKC21B-E4/2.13” Screen
Dot Matrix EPD Black/White/Red/Yellow
– EPD / E-ink Screen
– BLE 5.0 with ultralow-power consumption
– Dimension：71*34.7*9.5mm
– Working Temperature：0~40℃
– Battery：600mA / 5 Years
– 2.13″ Dot-matrix E-pater
– LED Indicator – Removeble Battery
– NFC
