You would need to find a device (typically a computer) in which to plug your cold wallet, then move the requisite amount of cryptocurrency to a hot wallet, and then make your purchase.
Read moreHow do I store bitcoins in cold wallet?
The first step to getting your bitcoin into cold storage is creating an offline Bitcoin address . This address will have a “public/private key pair” that is created without ever touching the Internet. A public/private key pair can be thought of as an email address and its corresponding password.
Read moreWhat is the best cold wallet to buy?
The Best Cold Wallets You Should Know About
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