No, you do not need to keep your BitBox02 plugged in at all times.

• Receiving: The device does not need to stay connected
• Sending: The device must be connected to sign the transaction

Transactions are processed on the blockchain network, not on your BitBox02.

When your BitBox02 must be connected

Your BitBox02 is required whenever a security-critical action is performed.

Sending transactions

To send Bitcoin or other cryptocurrencies, your BitBox02 must be connected.

This is because:

• The transaction is signed on the device
• Your private keys never leave the BitBox02
• You must confirm the transaction on the device display

Without the device, a transaction cannot be authorized or sent.

Verifying receiving addresses

Before receiving funds, you should always verify the address on your BitBox02.

This ensures:

• The address belongs to your wallet
• It has not been altered by malware

Once a receiving address has been verified on your BitBox02, it remains valid indefinitely.

Even if your device is unplugged for days, weeks, or longer, you will still receive any funds sent to that address. The next time you connect and unlock your BitBox02, the transaction will appear in your wallet.

When your BitBox02 is not required

Your BitBox02 is not required for the following:

Receiving transactions

You can receive funds without your device being connected.

• The sender broadcasts the transaction to the network
• The blockchain processes and confirms it
• Your funds are associated with your wallet, not your device

You can safely:

• Unplug your BitBox02
• Close the BitBoxApp
• Turn off your computer

Waiting for confirmations

After sending or receiving, confirmations happen entirely on the blockchain.

• Your device plays no role during this phase
• You can check the status later at any time

How transactions work (simple explanation)

Your BitBox02 is a signing device, not a storage device.

• Your private keys stay securely on the BitBox02
• The blockchain records all transactions
• Your wallet balance exists on the network

This means:

• You don’t need the device to receive funds
• You only need it to authorize outgoing transactions

Understanding confirmations

After a transaction is broadcast, it needs confirmations.

• Bitcoin: typically 3 confirmations
• Ethereum: typically 12 confirmations

Before confirmations:

• The transaction is pending
• It could still be replaced or dropped (rare cases)

After confirmations:

• The funds are considered secure

You can check confirmations:

• In the BitBoxApp
• Using a block explorer

Analogy: how your wallet works

Think of your wallet like a mailbox:

• You don’t need to be present to receive letters
• Letters arrive even when you are away
• You only need your key to access or send mail

Your BitBox02 is that key.

FAQ

Do I need to keep my BitBox02 plugged in to receive Bitcoin?

No. Once you have verified the receiving address, you can unplug the device. The transaction will still arrive.

Do I need the BitBox02 to send Bitcoin?

Yes. The BitBox02 is required to sign and confirm every outgoing transaction.

Can I unplug my BitBox02 while waiting for a transaction to confirm?

Yes. Confirmations happen on the blockchain and do not require your device.

Can I close the BitBoxApp during a transaction?

Yes, after the transaction has been sent. You can reopen the app later to check its status.

What happens if my device is not connected when I receive funds?

Nothing. The funds will still arrive and will be visible the next time you access your wallet.

Does a verified receiving address expire?

No. A verified address remains valid indefinitely and can receive funds at any time, even if your BitBox02 is not connected.