Product dimensions (length x width x height in mm): 69*36*12

Visible area (length x width in mm): 49*25

Product weight (g): 33g

Display Technology: EPD Dot Matrix Electronic Paper

Display size (inch): 2.1

Resolution (pixel): 250×122

 DPI：112 

Display colors: Black / White / Red / Yellow

Operating temperature: 0°C to 40°C

Battery life: 5 years (daily updates four times)  

Battery: 2*550mAh button batteries

Template Design Function: Supports

Lighting function: Supported

Encryption method: 128-bit AES encryption