Ideal for off-shore communication, the Uniden UM355 VHF is built with JIS4 water-resistant radio housing and a rugged splashproof design for the speaker microphone. Capable of boosting transmission from 1 watt to 25 watts for maximum transmission distance, the radio is powerful as well as easy to use with its extra large LCD display and backlit keypad for low light conditions. Capable of boosting transmission from 1 watt to 25 watts for maximum transmission distance, the radio is powerful as well as easy to use with its extra large LCD display and backlit keypad for low light conditions.