FW 6
FW 6 is a Foghorn with high mechanical resistance and low energy consumption. The Foghorn is made of corrosion-resistant aluminum to withstand the harsh marine environment. FW 6 is approved by the USCG (United State Coast Guard) up to 2 miles (3200 m). Thanks to the small but powerful amplifiers, the FW 6 is among the smallest headphones in its size on the market.