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