JAKCOM ACR122u NFC Contactless IC Card Reader Copy 13.56mhz IC Card for R3 Smart Ring or N2 Smart Nail Usually this product does not

Usually this product does not work for several reasons:

power bank

4 inch 400 x 400 Retina Amoled Dragontrail Touch Screen

built-in overheat

JAKCOM ACR122u NFC Contactless IC Card Reader Copy 13.56mhz IC Card for R3 Smart Ring or N2 Smart Nail Usually this product does notProduct Features: This product does not come with any software. You need applications provided by third parties. Built in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type) Supports ISO 14443 Type A and B cards, MIFARE, FeliCa, and all 4 types of NFC (ISO IEC 18092) tags Compatible Card Type: M1,UID Effect Distance: within 10cm Power: 5W Read Speed: 0. 01s Size: 1. 9 x 1. 1 x 1. 1 inches Product