4.2″ ESW Label
4.2″ Dot Matrix EPD Graphic Screen ESL, white frame, BWR screen
– EPD / E-ink Screen (black, white, red colors)
– BLE 5.0 with ultralow-power consumption
– Dimension:104.8*87*14.9mm
– Working Temperature:0~40℃
– Battery:2400mA
– LED Indicator
– Removable Battery
– NFC