$BTC Bitcoin (BTC), Ethereum (ETH), and other altcoins. It also provides various financial tools like Binance Earn, where users can passively grow their holdings by staking or earning rewards. Binance also has its own native token, Binance Coin (BNB), which is used for various platform features and discounts. 

Here's a more detailed breakdown:

Binance's Core Functionality:

Cryptocurrency Trading:

Binance allows users to buy, sell, and trade various cryptocurrencies against each other or fiat currencies. 

Diverse Trading Pairs:

It offers a wide array of trading pairs, including popular cryptocurrencies like Bitcoin, Ethereum, and numerous altcoins. 

Binance Coin (BNB):

Binance Coin is the platform's native token, offering various benefits like reduced trading fees and access to exclusive features. 

Binance Earn:

This feature allows users to earn passive income through staking, lending, or other investment opportunities. 

Launchpad:

Binance Launchpad is a platform for initial public offerings (IPOs) of new cryptocurrency projects. 

P2P Trading:

Binance P2P allows users to trade cryptocurrencies directly with each other, bypassing the traditional exchange process. 

Margin Trading:

Binance offers margin trading for more advanced users looking to leverage their positions. 

Futures Trading:

Binance provides futures trading options for users to speculate on the price movement of cryptocurrencies. 

NFT Marketplace:

Binance has an NFT marketplace where users can buy, sell, and trade non-fungible tokens. 

Key Features:

User-Friendly Interface:

Binance is known for its user-friendly interface, making it accessible to both beginners and experienced traders. 

High Liquidity:

The exchange boasts high liquidity, meaning there are ample buyers and sellers for various cryptocurrencies, ensuring efficient trading. 

Security Measures:

Binance employs various security measures to protect user assets and data, including two-factor authentication and encryption.