Coin uses a low-power Bluetooth signal to communicate with the app. If you ever leave your Coin behind while buying coffee, your phone will receive a notification asking whether you left without remembering to take your card. A phone is not required to use the card, however. Search “가상화폐구매☂〈텔레-coin2002〉♬이더리움세탁가상화폐송금♗✣리플송금☒” from Slim Down Your Wallet with a Card That Does the Work of Eight Credit Cards

Search “가상화폐구매☂〈텔레-coin2002〉♬이더리움세탁가상화폐송금♗✣리플송금☒”

Coin uses a low-power Bluetooth signal to communicate with the app. If you ever leave your Coin behind while buying coffee, your phone will receive a notification asking whether you left without remembering to take your card. A phone is not required to use the card, however.