ZKE21B
2.13″
Black-White-Red-Yellow
Descripción
– EPD / E-ink Screen
– BLE 5.1 with ultralow-power consumption
– Dimension：71*34.7*9.5mm
– Working Temperature：0~40℃
– Battery：600mAh / 5 Years
– 2.13″ Dot-matrix E-paper
– LED Indicator
– Removable Battery
– NFC
