Features:

- Support MP3 format, automatically play when power on, and the red LED indicator flashes when playing.

- Onboard 2W mono power amplifier (5V power supply up to 3W)

- Connect directly to the speaker (4Ω 3W speaker is recommended), and the 3.5mm audio port is the audio output port, which can be connected to earphones or external speakers.

- With Micro USB power supply interface, Type-C interface 2 kinds of interface, use mobile power supply or USB, Type-C charger to supply power through mobile phone data cable,

- It can also be powered by a 3.7V lithium battery.
 

Product parameters:

1. Interface: Micro USB, Type-C interface

2. Power supply range: DC 3.7~5.5V

3. Support MP3 format, automatically play when power on, and the red LED indicator flashes when playing. the
4. Support U disk, TF card playback mode;

5. The default TF card playback mode is the default when powering on. If no TF card is inserted, it will automatically jump to the U disk playback mode. If both devices are installed, you can manually set the playback mode. For details, please refer to the button operation instructions.

6.The buttons can switch up and down tracks, volume +/volume-, pause/play and mode switching, please refer to the button operation instructions for details.

7.You can set the cycle of "single song/full song" by pressing the button. The default cycle of the whole song is the default when the power is turned on. Press the "Repeat" button to change the cycle mode
 

Instructions:

"Prev/V- -" key: "short press" to switch to the "previous" song, "long press" to "decrease the volume"

"Next/v+ +" key: "short press" is to switch to the "next" song, "long press" is "volume up"

"P/P/Mode" key: "short press" for "play/pause" switch, "long press" for U disk, TF card "mode" selection

"Repeat" key: "short press", cycle switching for "single song/full song" (no long press function)
 

Notice:

1. The "long press" time is about 2S;

2. If you use the U disk playback mode, 5V power supply is recommended, and some U disks do not support 3.7V power supply.