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 Speaker Frequency response of 80Hz-18Khz 4 Ohms impedance UV resistant polymer housing IP66 water-resistant for marine applications Polypropylene cone Heavy-duty molded ABS plastic basket and grill construction Rear plastic water guard housing protects magnet and internal components Surface installation 75mm (2 1/8") cut out Supplied with 2m (6.5ft) or cable Single speaker Quick Guide (pdf)