Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•[Preamplifier]: The adjustment potentiometer is made of fully sealed type, and the input and output ends are made of pure copper terminals. The wiring is very convenient.
•[Convenience]: The IC holder can be soldered at any time to feel the effect of different op amps and enhance the playability.
•[LED Indicators]: Designed with LED indicators to monitor power state in real time.
•[Unique Design]: The board is simple and beautiful in design, and the wiring is reasonable, which makes the board have a very high signal to noise ratio.
•[Anti Interference]: This board has strong anti-interference ability. There is almost no noise near the horn when there is no signal input.
From USA
