Step-by-step: Alice teleports an arbitrary qubit state to Bob via entanglement + 2 classical bits
Alice has qubit |ψ⟩ = cos(θ/2)|0⟩ + e^(iφ)sin(θ/2)|1⟩. She and Bob share a Bell pair. Alice performs a Bell measurement (CNOT + Hadamard) on her two qubits, sending 2 classical bits to Bob. Bob applies the appropriate correction, recovering |ψ⟩ exactly — no matter is transferred, only information via entanglement.