The Coldcard MK4 is a Bitcoin hardware wallet (aka signing device) that allows users to secure and interact with their BTC. This video will walk through how to use your Coldcard via NFC with Nunchuk Wallet for mobile. RELEVANT LINKS: Get a Coldcard: https://store.coinkite.com/promo/BTCSessions Firmware Update Link https://coldcard.com/docs/upgrade Coldcard MK4 Tutorial https://www.youtube.com/watch?v=FAYmE5-40PQ Download Nunchuk Wallet https://nunchuk.io/ Nunchuk Wallet Tutorial https://www.youtube.com/watch?v=K4KrcYWr9G0 Muun Wallet Tutorial https://www.youtube.com/watch?v=5SbpyInuIJk Tapsigner Tutorial https://www.youtube.com/watch?v=xKHy1HMw5iU ? SUPPORT THE SHOW: Coinkite offers the BEST Bitcoin hardware on the market. Use this link to get 5% off anything in their store: https://store.coinkite.com/promo/BTCSessions Shakepay is the easiest way to buy Bitcoin in Canada Sign up now and get $30 free after your first $100 purchase! https://shakepay.me/r/BTCSESSIONS ALSO search/subscribe to Shakepay on YouTube! LEDN Bitcoin backed loans – get $10 free with a savings balance of $75 or more for 15 consecutive days! https://start.ledn.io/btcsessions BillFodl: get your wallet backups in solid steel. https://privacypros.io/btcsessions Bitrefill: use Bitcoin to purchase gift cards https://www.bitrefill.com/buy/?code=O04UMic9 Like what you see? Been watching for a while? Leave a BITCOIN TIP: https://strike.me/btcsessions