ColdLar Touch, a card type hardware wallet, is in interactive use with ColdLar App through the NFC function. Since iPhone corporate has merely opened the NFC function of transportation card rather than other cards to Chinese market, ColdLar Touch only supports the Androit system with NFC function; the relevant videos on operation on the official network are available at: https://www.ColdLar.com/tutorial
You can also dial the customer service hotline: 4000009968.
