The cheap systems are convenient for trying out at home,
if fed up with cables tangling up feet and chair legs...
But this is outweighed by the bulky fragile plastic transmitter cases
that can get knocked, break, and damage guitar jack plugs...

The JOYO I bought was an impulse novelty purchse at a very low clearance price.
JOYO is a reputable buget price brand,
but imho this product would be a big disapointment if purchased at full retail price...

Anyone intending to gig wirelessly really shouldn't waste money on these cheaper transmitter systems...