It is garbage.
It has a DC output which is bad.
It uses a low level microphone as its input so low noise 2N3904 or BC549 transistors should be used.
Its DC output will light all the LEDs all the time. The LM3916 needs at most a 1M resistor to ground at its input then audio signals capacitively coupled to it.
Only one is a polarized high capacitance electrolytic capacitor (maybe 47uF) . The others are low value non-polar film ones.
It is a filter for the supply voltage to the preamp transistor. Its value depends on how noisy (hum) is the supply. It is probably a 47uF or 100uF electrolytic.
The supply voltage is probably in series with the headphones at the output which is a horrible way to destroy headphones.