Acoustic guitar strings, typically made of bronze, phosphor bronze, or coated materials, greatly impact resonance and projection. Unlike electric strings, they rely on acoustic properties rather than magnetic pickups. Early acoustic guitars used gut strings, but modern options offer enhanced durability and tonal clarity. Leading brands include Martin (Authentic and Lifespan series), Elixir (80/20 and Phosphor Bronze coated), D’Addario (EJ16 and XT series), and Ernie Ball (Earthwood series). Lighter gauges (.011–.052) provide easier playability, while heavier sets (.013–.056) enhance volume and sustain. These strings cater to fingerstyle, strumming, and percussive playing, with coated variants ideal for extended lifespan in humid environments.