Used for several years (4 yrs.), Live mainly.
Great to walk on stage, without strings attached!
Very good price. Works very well. No problem so far.

An important point: it eats batteries!!. I always change the AAA battery at the beginning of the concert. used batteries in remote end where they work several months, or lighting LED desk.

Small problem: there is a * slight * loss of momentum and acute. This is true with all wireless systems I've used.