2.9 inch Passive NFC-Powered E-ink Display ESL Wireless, No Battery, GDN029BW

2.9 inch E-ink Display NFC-powered Electronic Shelf Label, adopts novel passive NFC technology, no battery required, no more battery life trouble. 2.9 inch e-paper display, black and white. Use protective ABS case, beautiful and light weight, supports personalized customization. Refreshed By Smartphone, Comes With Android APP, As Easy As Swiping A Credit Card! For more information: Buying online: Contact us: info@