Product dimensions (length, width, height mm): 92 * 42 * 13

Visible area (length and width mm): 66 * 28

Product weight (g): 50g

Display technology: EPD dot matrix electronic paper

Display size (inch): 2.9

Resolution (pixel): 296 × 128

DPI：112 

Display colors: black/white/red/yellow

Working temperature: 0 ℃~40 ℃

Battery life: 5 years (updated four times a day) Battery: 2 * 550mAh button battery

Template design function: Supports

Lighting function: Supports

Encryption method: 128 bit AES encryption