External Weatherproof Single Speaker for Cortex M1 Vesper's External Weatherproof Speaker is designed for the marine environment. With IP66 ingress protection, they are suitable for mounting almost anywhere onboard. Compact in size, this speaker features heavy-duty molded plastic housing.Features:3" 70 Watt SpeakerFrequency response of 80Hz-18Khz4 Ohms impedanceUV resistant polymer housingIP66 water-resistant for marine applicationsPolypropylene coneHeavy-duty molded ABS plastic basket and grill constructionRear plastic water guard housing protects magnet and internal componentsSurface installation 75mm (2 1/8") cut out Supplied with 2m (6.5ft) or cableSingle speaker