AM / FM / CD / AUX / SiriusDC-Ready (USA only) Requires additional SiriusDC Connect Vehicle Tuner * Class-D amplifier system will draw less power than a standard amplifier and produce little to no heat. * Full tone and individual control of the volume in three locations on-board your vessel. * The large rotary encoder and the large easy press buttons on the face control most operations. Simple to navigate, scroll through your iPod music library easily. * Chassis is IPx5 Water Resistant- able to withstand high humidity, salt air and water splashes