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Works just fine
Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Pros:- Very small
Cons:- Runs from 3.7V or 5V so it can easily be used in a DIY project.
- Accepts both SD-cards and USB sticks
- Contains a reasonably powerful amplifier, so you can directly attach speakers.
- Audio volume is not stored, so when the power is switched off and on it starts to play at its default (loud) volume.
Bottomline:- The manual is written in Chinese, the only thing I could understand was that it mentions 3.7V and 5V. Since I originally thought that it would run on 12V (provided by a car battery) I looked up the parts on the PCB and noticed that they all run on those lower voltages. Luckily I noticed this before I connected it to 12V.
Great little device to add MP3 playback to just about anything you want to build.