Uniswap V4 uses concentrated liquidity — you choose a price range for your position. Narrower ranges earn more fees when the price stays in range, but go out of range more easily.

Approval Flow: V4 uses Permit2 for token approvals. You'll need to: (1) Approve tokens to Permit2, then (2) Approve Permit2 to spend via PositionManager. This is a one-time setup per token.

Range Types: Full Range covers all possible prices (like V2). Wide ±40,000 ticks gives broad coverage. Narrow ±4,000 ticks is more concentrated.

Pool: PositionManager | View Pool on Uniswap