Product dimensions (length, width, height mm): 96 * 90 * 5

Visible area (length and width mm): 83 * 63

Product weight (g): 106g

Display technology: EPD dot matrix electronic paper

Display size (inches): 4.2

Resolution (pixel): 400 × 300

DPI：112 

Display colors: black/white/red/yellow

Working temperature: 0 ℃~40 ℃

Battery life: 5 years (updated four times a day) Battery: 4 * 550mAh button battery

Template design function: Supports

Lighting function: Supports

Encryption method: 128 bit AES encryption