The product's material is ABS, pls avoid any hard object scratches. 1.54inch Passive NFC-Powered E-Paper, No Battery, Wireless Powering & Data Transfer 1.54" Passive NFC-Powered E-Paper Rounded Metal Border, Nice Looking, Stunning Quality Red / Black / White Three-color Displaying Wireless NFC-Powered Display Refreshing Passive NFC Solution, No Battery Required, No Messy Wiring How It Works Wireless Powering & Data Transfer To Refresh The Display Content, Use A Smart Phone With NFC Function, Or An NFC Reader, Close To The E-Paper, It'll Be Done In A Few Seconds A Born Hanging Ornament Features Corner Hang Hole, Ideal For Handbag Decoration, Key Fob, Etc. Choice of Case Color Application Examples Suitable For Smartphone / Key Fob, Contact Card QR Code, Hanging Ornament... Rounded Metal Border Metal Border, Stunning Quality, More Durable Choice Of Case Color Fashionable Design, Show Your Personality Case color options: Black Grid Case | Pure White Case Specifications POWER SUPPLY Wireless GREYSCALE 2 DISPLAY COLOR Red / Black / White REFRESH TIME 8s (data transfer time is not included) DOT PITCH 0.138 × 0.138 DISPLAY SIZE 27.60mm × 27.60mm RESOLUTION 200× 200 OUTLINE DIMENSION 47.84mm × 41.28mm VIEWING ANGLE >170° Outline Dimensions PACKAGE CONTENT Weight: 0.013 kg 1.54inch NFC-Powered e-Paper (BW) x1
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