Brand
JOYO Technology is a Shenzhen music-gear company whose range goes well beyond stompboxes. Its official catalogue covers guitar and bass amplifiers, acoustic and busking amps, effects, power supplies, interfaces, wireless systems and accessories. JOYO also says it develops acoustic-core technology and has applied for utility patents. JustPedals listings include the JF-21 Splinter distortion and JF-319 Green Legend overdrive, alongside mini amps and power adapters. That breadth matters when comparing products under the JOYO name: some are effects, while others support the rest of a guitar or bass rig.
Category
A pedal switcher routes effects through independently controlled loops so several pedals can be engaged, bypassed or reordered from one set of footswitches. Simple loop strips shorten the live signal path; programmable systems store combinations as presets and may send MIDI commands or change amplifier channels. Loop count, buffer placement, stereo support, spillover and routing flexibility define the system.
Tags
Sends, receives or responds to Musical Instrument Digital Interface messages rather than carrying the instrument audio itself. Program changes recall presets, continuous controllers move parameters, and MIDI clock or transport messages synchronise timing between devices.