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.
If you use the U disk playback mode, 5V power supply is recommended, and some U disks do not support 3.7V power supply
Interface: Type-C interface Power supply range: DC 3.7~5.5V
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