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. 6in. 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.