Mono 3W Amplifier Circuit / MP3 Player Circuit

HW-188 MP3 player circuit, via micro SD card, USB memory or aux jack cable via phone or computer It is a product with which you can play music. You can increase or decrease the volume with the function buttons on it. You can skip to the next or previous song.

You can use this product with a 3.7V li-ion battery or a 5V phone charger adapter or power bank from the Micro USB supply end. You can feed it with . 2W speakers can be connected at 3.7V and 3W speakers can be connected at 5V. It is recommended to use with 4 Ohm 3W speaker.

Supports TF Card (mobile phone memory card) and U disk playback mode.

Easy wiring No soldering with speaker terminals for.

Product Overview:

Supports MP3 format. Red LED flashes when MP3 is played.

Supports USB Memory (test 32G), TF Card (test 16G) playback mode

Buttons can be adjusted up and down to control songs, volume up and down down, pause or play, change mode.

Using Instructions for Buttons:

"Prev / V--" button: "Press" to change the previous song, "long press" to decrease the volume

"Next / v++" button: "Press" to change next song, "long press" to increase volume.

"P/P/Mode" button: " "Press" for "Play/Pause" Switch, "long press" for U disk, TF card mode.

"Repeat" button: "Single/all songs" "long press" for mode (do not long press)