I have a compact DJ system that includes a SHURE wireless mic and two Bose Bluetooth receivers. What I needed was a quiet running and small footprint mixer to combine these various and sundry audio sources. What I had was not quiet - there was always a buzzing sound that I could not trace. And the SURE Wireless XLR output was troublesome and hard to balance the volume.With this tiny mixer did the trick. It is quiet (Zero Humming), I used the Phone plug output from the SHURE and converted it to mini phone with a cheap plug and it is QUIET now! The knobs on this little gem are smooth as silk, the sound this mixer exudes is terrific! It gets out of the way and just works. It's tiny footprint is perfect for my application, and I'm finally getting the balance in audio sources I've been looking for. Did I mention that the sound is awesome? Yes it is I have more bass, zero hum, and wonderfully crisp highs.I couldn't be more delighted.