Product dimensions (length, width, height mm): 105 * 60 * 6.5

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

Product weight (g): 60g

Display technology: EPD dot matrix electronic paper

Display size (inches): 3.7

Resolution (pixel): 416 × 240

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