Jack

Not too much is known about Jack except that he can be a bit naive and curious, though they tend to speak by parroting media soundbites for words they want to speak, sometimes just playing music straight off the radio.
Occasionally, they may try to speak on with their own voice, but their voice comes out as ear-grating, flat, and with lots of analog noise.
As an ampwave, they can defend themselves with a combination of soundwaves and electricity, though electricity is also their main food source, so they sparingly attempt to shock someone.
They can exchange data with devices or other ampwaves with their plug-claws and tail-jack, as well as fly on soundwaves from the speakers in their hands.