Hi-Fi Speakers
200 Watt Marine Boat Speaker System, Weather Proof Dual 2 Way 6.5 Inch Outdoor Speakers w/ 85Hz-6kHz Frequency Response, Heavy Duty 8oz Magnet Structure (White)
85Hz-6kHz FREQUENCY RESPONSE: Pyle’s dual 6.5 inch weather-resistant marine speakers with 0.5” neodymium dome tweeter speaker features 85Hz-6kHz frequency response that will complete a sound system of a boat or any marine vehicle or woofer enclosure...
https://www.bizrate.co.uk/hifispeakers/200-watt-marine-boat-speaker-oid35840496368.html