CUSTOMER SERVICE
Main Parts : 
Power Jack x 2
IC TDA2822M x 1
Audio Jack x 1
8Ω 1W Speaker x 2
2x1-pin Stackable Header x 2
Brick Unit:9 x 7

Note : 
1. Use switch to select Mono/ Stereo output
2. Optional audio input from 2x1-pin Stackable Header
3. Use variable resistor to adjust volume

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