About this item

• 【Wireless NFC-Powered Display Refreshing】Passive NFC Solution, No Battery Required, No Messy Wiring
• No need for a backlight, power off can keep the display content of the last screen for a long time
• It does not contain a power supply such as battery itself, which is suitable for application environments with limited power supply
• The displayed content can be customized and controlled by the user at any time through the smartphone, which is convenient and flexible
• Provide a supporting Android APP to help users edit and manage the display content of the ink screen