Jensen MSR3012 CD/iPod Receiver features 40 watts x 4 maximum power output. Low vessel battery warning system. Solid top chassis for moisture protection. Permanent faceplate of the MSR3012 unit provides larger buttons and display. Front USB jack allows direct iPod/iPhone connection and control and also receives USB memory sticks. Front auxiliary audio input jack. 40 second CD skip protection. SiriusXM ready (tuner not included). The Jensen MSR3012 CD/iPod receiver includes weatherproof marine housing with a spring-loaded flip-up door. 7.5"W x 2.25"H x 6.9"D.