MIL E-ink screen

4.2-inch Black & White & Red E-Ink Screen
Resolution: 400 * 300 Pixels
DPI: 119
Viewing Angle: 180°
Refresh Rate: 16s (10°C ~ 40°C)
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3 * 590mAh CR2450 Lithium Batteries
Battery Life:
Around 5 Years (Class A Mode + 1 Screen Refresh per Day) /
Around 1 Year (Class B Mode + 12 Screen Refreshes per Day)
Support Multiple Characters to Display up to 150 Languages
Provide API for Management Platform Integration or Development
Support Display Template Customization
NFC Enabled
IP30 Rated