Hello everyone,

I have purchased Joyo Ultimate Overdrive today and I was playing around and I discovered that if you leave the pedal on but turn the volume knob on your guitar all the way down the pedal plays some quiet rock music in the background

Is it normal behaviour?

I'm confused
It is probably just picking up a radio station. Or rather, something in your signal chain is picking up a radio station. If you have the gain/distortion maxed, it is very easy for noise (like a radio station) to enter into the signal chain.
That'd be radio interference. It happened to me once while using a shitty Marshall MG head at a gig.
..I was watching my death.
It sounds like that's it. Thanks for the explanation Will.

That's just awesome. Maybe not wanted behaviour but awesome
maybe there are ghosts inside?
WTLT 2014 GG&A

Quote by andersondb7
alright "king of the guitar forum"

Quote by trashedlostfdup
nope i am "GOD of the guitar forum" i think that fits me better.

Quote by andersondb7
youre just being a jerk man.

****** NEW NEW NEW!
2017-07-07 2017-07-07 Update and a Chat On Noise Constraints *** NEW FRIDAY 7/7
2017-04-13 RUN AWAY from COMPUTERS!!! TCE? RANT ALERT!!!
2017-03-02 - Guitar Philosophy 1001- Be Prepared For the Situation (Thursday 2017-03-02)
2017-02-21 How to Hot-Rod the Hell of your Stratocaster for $50! (Tuesday 2017-2-21)
Resentments and Rambling from a Guitar Junkie
---> http://trashedengineering.blogspot.com/
'16 Gibson LP Standard T, '15 Epi LP Standard with 57/57+ Gibbys
Blackstar S1-45, Marshall DSL100H, JetCity JCA50H