A cryptocurrency wallet is software or hardware that stores your private keys and allows you to send, receive, and manage your digital assets. Wallets do not actually store coins - they store keys.
Types of wallets: Hot wallets (connected to internet), Cold wallets (offline storage), Hardware wallets (physical devices), Software wallets (apps), and Paper wallets (printed keys).
Wallet features: Address generation, transaction signing, balance checking, DApp connectivity (Web3), and multi-chain support.
Choosing a wallet: Consider security needs, usage frequency, supported assets, backup options, and ease of use.