This is a uniquely designed active apple-shaped mini speaker. The apple consists of two hemispheres and a base. Each hemisphere contains a small, bright-diaphragm speaker. The base contains a circuit board using the classic TDA2822 dual-channel amplifier IC, featuring a power switch, a power LED indicator, a dual-channel volume potentiometer, and a hollow socket for connecting an external power source.
The base has a battery slot for four AAA batteries. Assembly is relatively simple; just solder the components according to the schematic and PCB layout, and assemble the casing. It should work normally without much debugging. The kit includes a dual-channel audio input cable with a 3.5mm dual-channel plug. Batteries and an external power supply are not included.
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