Yifang Digital Technology EF200A Users Manual

USER MANUAL

Button Description

Basic Operations

1. Open the battery cover on the unit. Install one AAA battery and return the battery cover.

2. Plug the LINE-IN audio cable into your MP3 player or other portable music device.

3. The unit will automatically power on when it detects an input signal. For best results, keep your
player set at a medium volume level.
NOTE: Setting your device volume very low may cause the FM Transmitter to turn off, even if the
audio player is on. You can press and hold both
seconds to turn on the unit. To turn off the unit, press and hold both buttons simultaneously again
for two seconds.
NOTE: To conserve power, the FM Transmitter will automatically turn off when there is no input
audio signal for 50 seconds +/- 10 seconds.

4. Tune your car or home stereo radio to a channel with a weak or no broadcast signal.

5. Press the
step 4 on your car or home stereo. Press and hold either button for fast-forward or backward
tuning.

6. To memorize a specific frequency (four stations maximum) for easy selection:
a. Select the desired frequency using the

b. Press and hold “M” (memory) button for two seconds, and then release it until the icon

“M1” blinks on the display.

c. Press the

storage. The active memory slot icon will blink.

d. Press the “M” button again to store the frequency and return to normal operation mode.

e. In operation mode, pressing the ”M” button will toggle among the four memory slots to

retrieve the memorized frequency.
NOTE: When there is no key press for a duration of a few seconds, the FM Transmitter will
automatically memory the selected frequency and return from memory mode to operation mode.

7. Adjust the volume on your MP3 player or other audio source to a medium level.

8. Adjust the volume of your FM radio to the desired listening level.

or button on the FM Transmitter to select the transmission frequency chosen in

Mobile Power Cord Connection for Extra DC Power

To save battery charge, you can optionally use the DC adapter to power the unit. Connect one end
of the cable into the DC port located on the rig ht of the FM Transmitter. Plug the other end of the
cable into the cigarette lighter port in your car. Once the cable is plugged into the FM Transmitter,
the unit will shut off. You will need to manually turn on the unit.
NOTE: This cable will NOT charge t he FM Transmitter.

and buttons simultaneously for two

or buttons.

or button to select one of the memory slots M1, M2, M3 or M4 for

Tips:

For best results, please:

● Try to keep the FM Transmitter close to the antenna of your FM radio. A distance of 10 feet or

less will minimize interference and provide the strongest signal.

● Keep fresh batteries in the FM Transmitter. When the batteries become very Low, the
transmission strength will weaken.

FCC WARNING STATEMENT
FCC NOTE:
THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE

CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH
MODIFICA TIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received,
including interference that may cause undesired operation.