BOSS Audio Systems MRWT40 marine waketower speakers provide a wider dispersion pattern than the semi-dome design. The dome’s weight is less than half of that of a conventional speaker and has a frequency response of 200 kHz. The system can be used in any weather condition, including rain, snow, wind, hail, etc. It also features a built-in amplifier for sound reinforcement. The device comes with a battery backup. Notably, it was launched in 2015.