RCA Input ,Can be plug in with Ipod,MP3/MP4 * Mini size easy to installation by DIY without manual, especially good fit for car, motorcycle bike,boat, every where! * Compact Size: 120mm (D) X 147mm (W) X 42mm (H) weight:280g * It has Blue LED light ring round Volume Knob;Bass/Treble tuning. * Aluminum alloy solid case and also easy to distribute the heat.