Unfortunately, this is no longer available, but perhaps the Related offers may be of interest.
huendeskes Small electronics to be built into a guitar, which you can use as a boost or overdrive. With 4 potentiometers you can set the desired sound, which you can adjust from one side. Furthermore, there is an option to cut bass and treble with two switches. Can be used without an amplifier with headphones for silent practice. Dimensions: 35*31*13mm Maximum output voltage: +-1.8V Power supply voltage: 9V Current consumption: 7mA Noise at half volume: 1mV If you have questions, feel free to write.