text: Acoustic guitars cannot be plugged in. They have no electronics. Acoustic /Electric guitars look the same as Acoustic[they are both hollow-bodied]. The only difference is that Acoustic/Electrics can be plugged in. They have a jack and a small pickup which is not highly visible yet allows the instrument to be plugged into an amplifier which increases the volume of the instrument[also allows electronic effects to be added to enhance sound quality during performance].