See also:

Power switch and volume control
The dial is used for both power (ON/OFF) and volume control. The radio is turned ON and OFF by pressing the dial, and the volume is controlled by turning the dial. ...

Certification for the Handsfree system
FCC WARNING Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE This device complies with Part ...

FM/AM selection
Type A and B audio Type C audio Push the “FM/AM” button when the radio is off to turn on the radio. Push the “FM/AM” button when the radio is on to select FM1, FM2, FM3 or AM reception. Each brief ...