1.69-inch Six-color E-ink Screen Anti-lost Device with a Movable Changeable Profile Picture Frame and High-definition E-paper

Resolution:400*400
DPI:236
screen colour:6colurs
Outer dimension: 54*85.7*3.2mm
Weight：23.7g
Material:Tempered glass + aluminum alloy
Battery Li-On rechargeable :100mAh
Charging method:QI Standard Wireless Charging
BLUETOOTH 5.1 ,distance within 10meters