Headphone Amplifier with Built-in Rechargeable Battery

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A relatively low-powered amplifier that raises the low-voltage audio signal from a source device (be it a turntable, PC, or smartphone) to a sufficient level such that it can be converted (or transduced) into sound waves by the speakers inside your headphones. It works like the amps used to power full-sized speakers but operates at a lower scale.

Operational Steps:
Step1:  Make sure to turn the VOL knob to the minimum.
Step2:  Connect the input with an audio source.
Step3:  Connect the output with a headset.
Step4:  Turn the knob clockwise to turn on the power.
Step5:  Put on headphone and adjust the volume.





      130mW  32Ωload


      Audio amplifier

      Output power: 130mW  32Ωload

      Frequency response: 10Hz-40kHz(±3dB)

      Power supply

      USB Cable

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