[. . . ] Slowly rotate the Tuning control (3) until the dial pointer corresponds with the frequency of the desired station. [. . . ] All the other audio programs will be disconnected once the microphone is plugged into the socket. LED Illuminator You can press and release the LED illuminator switch to give signal. If you press harder and release, the LED illuminator will light up for illumination purpose. The apparatus shall not be exposed to heavy rain and no objects filled with liquids, such as vases, shall be placed on the apparatus. To completely disconnect the power input, the mains plug of the apparatus should be disconnected from the wall outlet. The mains plug of apparatus should not be obstructed OR should be easily accessed during intended use. [. . . ] Which is designed to be powered by a vehicle or a boat, this way you can take the radio outdoors or on a boat. [. . . ]