When selecting outdoor seating for areas prone to ultrasonic phenomena, durability and noise reduction are key. Opt for weather-resistant materials like powder-coated aluminum or marine-grade polymer wicker, which withstand environmental stressors while minimizing sound interference. Modular patio sets with cushioned, noise-absorbing fabrics enhance comfort without amplifying high-frequency waves. For permanent installations, consider stone or concrete benches with textured surfaces to diffuse sound. Elevated designs with vibration-dampening feet further reduce ultrasonic feedback. Always prioritize UV-resistant and waterproof finishes to ensure longevity in challenging acoustic environments.