Poly Planar MRR5 is a marine-rated wired remote control designed to operate functions on marine devices. It features a watertight flat body with UV and water-resistant buttons, controls, and display for durability in harsh marine environments. The MRR5 allows users to control various functions, including:

1. Power: Turn the unit on or off with the dedicated power button.

2. Mode Selection: Switch between different listening modes such as radio, CD, AUX IN, IPOD, or USB with the MODE button.

3. Audio Controls: Adjust the volume level using the VOL +/- buttons. Mute the audio or pause/resume playback in CD/USB/IPOD modes with the >/||N/MUTE button.