No problems, great sound even when I used a competitor (Donner Wireless) to send the effects processor output into the PA.

Updated review: I was having really terrible problems with hissing and feedback with this system

Only problem I had was *the noobie error* of not hearing anything at first, due to me putting the receiver end into my guitar

Again, no problems - this fits the Stratocaster socket no problem (the Donner doesn't - the U2 is more compact, too).3

I worried that interference with WiFi routers in two venues that I use would be a problem

Overall this is a really nice device if you don't mind charging both the transmitter and receiver, but the rattling could cause problems in certain cases.[Update May 31, 2017]Xvive contacted me about the rattling noise I was experiencing and offered to replace the unit.

No static, no hiss, no problems at all

No static, no hiss, no problems at all

no wires no mess no problems at all

I've been using these about a month; Used on a 78 Fender P Bass with Semour Duncan quarter pounders (passive) and and LTD B104 with EMG (active

One of the covers fell of during rehearsal, which made me question build quality, but they are pretty sturdy l little units.