I used this wireless system for a few months until my mind to the evidence that its reliability was poor and reluctantly return to the traditional cable.

It was my first wireless system, I am now awaiting receipt of Line6 G30 relay.

Autonomy was not at the rendezvous only 3 hours!
The stalls were very frequent, until the sound cuts net (though very brief).
Using the three position selector never managed to regain the level of actual output of the guitar, whatever the model used (Gibson SG, Fender Stratocaster Eric Johnson, Fender Telecaster, Epiphone Sheraton). The first position completely baggy sound, the second was "good but not top" (a clear difference with a jack) and the third was the cruncher scrapes clean sound.

The quality / price is not so bad at this price, should not expect the stuff to pro ... But from Shure, I am disappointed.

The pros:
- Lots of channels available.

The -:
- Stalls very frequent.
- Loss of output level rather blatant, eaten on its first two levels of output, or conversely too high on the third.
- The autonomy of 3 hours max.

I will not repeat that choice.