Onboard type frequency transmission
guitar preamplifier, with undersaddle
piezo pickup and microphone input
sources, Tone, Volume,Mic controls
and Reverb and chorus effects, super
bass, bass, middle, treble, super high
adjustment, working and low ba�ery
indicator, 18650 rechargable ba�ery
and ba�ery case and USB recharger is
selectable.