General features:

- marine CD receiver with built-in amplifier
  (18 watts RMS/50 peak x 4 channels)
- marine-ready IPx5 waterproof rating, plus full UV and salt fog certification
- KCU-440i iPod control cable included
- plays CDs, CD-Rs, and CD-RW discs, including discs loaded with MP3, WMA,
  and AAC music files (except Digital Rights-protected files)
- fold-down face with a 2-line LCD display
- wireless marine remote control-ready

Audio features:
- 2-band parametric equalizer with bass center frequency control with Q,
  treble center frequency control
- high-pass filter (speakers and front/rear preamp outputs)
- dual-zone output

Expandability:
- compatible with: Alpine Bluetooth® adapter, satellite radio, HD Radio™
  tuner, CD changer, IMPRINT sound tuning processor
- inputs: USB input, two auxiliary inputs
- outputs: 6-channel 4-volt preamp outputs (front, rear, subwoofer)