YOFITS YF37 Portable Radio AM FM MP3 Player User Manual

: August 14, 2024
: YOFITS

Table of Contents

YF37 Portable Radio AM FM MP3 Player
Operation Instruction of Each Button:
AM Auto-scan radio:
FM Auto-scan Radio:
Battery Charging method:
Frequent Problems Solutions:
Technical Parameters:
Package include:
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Mini Digital Speaker User Manual

YF37 Portable Radio AM FM MP3 Player

Volume knob
LED flashlight switch
DC 5V charging jack
USB port
Music repeat
Audio input
Earphone output
Switch mode among USB/TF/FM/AM/AUX
TF card slot
Power switch ON/OFF
Display screen
0-9 number buttons
Previous MP3/channel, rewind
Play/Pause/scan and memory radio channels
Next MP3/ channel, fast-forward

Operation Instruction of Each Button:

LED: Hold press to make the LED flashlight work;
REP: First press for ONE, repeating the current one MP3; next long press for ALL, repeating all the MP3;
: In MP3 mode, short press for previous MP3 while long press to rewind; In FM/AM mode, short press for previous channel;
: Short press to play or pause; In FM/AM mode, long press for over 3 seconds to automatically scan and memory channels;
: In MP3 mode, short press for next MP3 while long press to fast-forward; In FM/AM mode, short press for next channel;
M: Mode switch among USB/TF/AUX/FM/AM;
: volume up to the big side,volume down to the small side;
USB: Plug in USB flash drive with MP3 files inside and then the MP3 files can be played:
TF: Plug in TF card with MP3 files inside and then the MP3 files can be played;
AUX: Plug in 3.5mm audio cable, then can be used as external speaker with audio input function;
ON/OFF: power switch, turn on or turn off this product;
Functions of 0-9 number buttons:
(12.1) In MP3 mode, number buttons 0-9 can be used to select one specific mp3. (For example, continuously press buttons 2+5+8 to select the 258th mp3)
(12.2) In FM/AM radio mode, number buttons 0-9 can also be used to select one specific channel by radio frequency( For example, in FM radio, continuously press buttons 8+7+8 to select a channel of 87.8 MHz:in AM radio, continuously press buttons 5+8+8 to select a channel of 58.8 KHz ).

AM Auto-scan radio:

When first time to use this product, please scan the AM radio first as follows:

Turn on the product, then press “M” button to be the mode of AM, then the “AM” icon will light on the display screen; Then long press “ ” for over 3 seconds and stop, the numbers on the display screen will jump up quickly from 522 and stop at 1710, which means the AM radio is Auto-scanning channels and during this time you should not do any other operations on this product.
When finishes Auto-scanning, it will automatically turn back to play the first channel, you can press * “or ” to choose the previous or next AM channel. And please note that AM is medium wave, so it is easy to be interfered by electromagnetic waves that come out from power charger, light, computer and so on, which may lead to failure to scan AM channels. So you had better move to some places without much interference of electromagnetic waves when you scan the AM radio.

FM Auto-scan Radio:

When first time to use this product, please scan the FM radio first as follows:

Turn on the product, Press ““M” button to change to the mode of FM radio, then the “FM” icon will light on the display screen; then long press * ” for over 3 seconds and stop, the numbers on the display screen will jump up quickly from 87.5 and stop at 108, which means the FM radio is Auto-scanning channels and during this time you should not do any other operations on this product.
When finish scanning, it will automatically turn back to play the first channel; you can press “ or to choose the previous or the next FM radio channel.

Battery Charging method:

Plug the big end into the USB jack of computer or USB power adapter, and plug the small end into the DC 5V charging jack of this product. When charging, the LED charging indicator will light.

Frequent Problems Solutions:

When reading USB/TF intermittently or fail to read: A. Battery voltage maybe too low, need to charge it; B. If fail to read USB/TF all the time, please confirm whether music inside is MP3 format (because this unit can only play MP3 format music, can’t play other formats).
Can not broadcast FM/AM radio: Please long press button” ” to auto scan and memory channels, during this time the numbers on the display screen will jump quickly. When finish scanning, it will auto turn back to play the first channel.