47 HIFI NE5532 Headphone Amplifier DIY PCB AMP Kit With Transparent Case Single Power Supply DC12~18V
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Adopts NE5532 operational amplifier.Can play good sound quality.Wide range for input voltage: DC12~18V.Uses 5.5mm inner/2.1mm outer interface.Includes rotating knob for volume adjustment.With transparent case, components can be well protected.Adopts NE5532 operational amplifier. Can play good sound quality.