✍ TDA7397 located on this plate is a two-channel power amplifier 15W per channel (with a peak of 25W!), And the plate is also a potentiometer to adjust the volume directly with one another.

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▼ Specifications :-
On-board TDA7297 dual channel audio amplifier chip
Operating Voltage Range: 9 – 15V DC (Recommend 12VDC 2A)
Output Power: 15W each channel amplifier circuit design (Peak up to 25W)
Output Impedance: 4-8 ohms
Efficiency: up to 90%
On-board terminal blocks for left and right speaker
On-board potentiometer for volume adjustment
DC power jack
3.5mm audio input
Board Size: 50 x 55 x 40 mm

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▼ Package Contents :-
1 x TDA7297 Module
1 x Knob