Keystone 3 Pro
In plain words
Keystone 3 Pro is a hardware wallet. Big touchscreen and fingerprint unlock. Talks to your phone only through QR codes in air-gapped mode. Supports many coins, not only Bitcoin.
Key facts
Keystone 3 Pro: multi-coin, not Bitcoin-only; open source; air-gapped (works without a cable to a computer); connects by QR camera, microSD, USB-C. Price: $149, see the price source below.
See also
- Hardware walletA hardware wallet is a small device that keeps your private keys offline and signs transactions inside itself. Even if your computer is infected, the keys never leave the device.
- Seed phraseA seed phrase is a list of 12 or 24 ordinary words that can recreate all the keys of a wallet. Whoever has the words has the bitcoin, so write them on paper or metal and never type them into a website.
- MultisigMultisig means a payment needs several keys out of a set, for example any 2 of 3. Losing one key, or having one stolen, does not lose the coins.
- Air-gappedA device that never connects to a computer by cable or network; data moves by QR code or SD card.
References
- Keystone 3 Pro keyst.one
- price source keyst.one