Features: Royal Blue High Impact, Glass Reinforced Polyester Housing. NEMA 3R Weatherproof Rating. Sealed Metallic Keypad. Non-Movable Hook-switch. Volume Control Handset. Noise Canceling Microphone. 6" Hytrel Cord. Area Approvals, Class I, DIV 2. Groups A,B,C,D; Class II, DIV 2. Groups F and G Class III. Suitable for Subzero Environments -40°C (-40°F) to +60°C(+140°F). FCC & IC Certified, UL60950 Listed. Spring Door Return.