Zkong Valley ZKC29V-NE4
Characteristics:
✔ Size: 90x41x12.1mm
✔ Dot-matrix E-Paper 2.9 inch
✔ LED indicator
✔ EPD display: 66.9x29.06 mm
✔ Operating temperature: 0°~40C
✔ Removable battery with a capacity of 1200 mAh
✔ NFC and Bluetooth BLE 5.0 with low energy consumption
✔ Multicolor, 4 colors