6-channel amp system for powerful audio performance Built-in Bluetooth for wireless music streaming Waterproof and weather-resistant marine-grade construction MOSFET power supply for efficient sound output Bridgeable amp configuration for flexible setup options Hi/Lo electronic crossover network with gain control Variable high pass, low pass & bass boost controls Remote bass boost controller for enhanced bass adjustment Heavy-duty aluminum alloy heatsink for heat dissipation Integrated short circuit, overload, and thermal protection Compatible with iPhones, Androids, tablets & more Wireless Bluetooth range of 25+ feet