High-Impact, Glass Reinforced Polyester Housing. NEMA 3R Weatherproof Rating. Anti-Corrosive Enclosure. Non-Moveable Hookswitch. Volume control handset. Noise canceling microphone. 6' Hytrel™ Cord. Extreme Operating Temperature Range -40™C (-40™F) to +60™C(+140™F). FCC & IC Certified. UL60950 Listed. Hearing Aid Compatible. Yellow