Passive NFC Wireless Power Supply Transmission Brush

Product information:
Grayscale level: 2
Refresh time: 8s (excluding data transmission time)
Display size: 27.00mm x 27.00mm
External dimensions: 47.84mm x 41.28mm
Power supply method: wireless power supply
Display colors: red, black, white
Point spacing: 0.138 x 0.138
Resolution: 200 x 200
Visual angle:>170 °
Specification and model: 1.54-inch silver shell * 3C digital * paper box * XQ880