you must get Mpow Ground Loop Noise Isolator for Car Audio / Home Stereo System with 3.5mm Audio Cable (Black) to clear the Ground loop noise

There was a screeching/static noise though, so I purchased a noise isolator for 9 bucks and now the sound quality is perfect

but When i plugged into the aux make a weird noise all the time

This add-on device PERFECTLY CORRECTED the obnoxious noise that made this Bluetooth and other car audio products worthless

Seems to make an annoying hissing noise through the speakers even when the stereo is off

Automatically connects, great mic, low ground noise.

There is a strange clicking/buzzing noise everytime the SB360 is on and it gets worse when I pair my phone and start playing music, it is extremely irritating

Some other devices I tried did not have that static noise

No noise, clear communication

Mic is good, with good noise cancelling and road noise omission.

Connects quickly but that noise is god awful

I assume that if I'll bought better noise isolator, the sound would be better, but it's missing the whole point

Experiencing a lot of static noise

Terrible backfeed noise and broke after one day

Also the sound quality is very good without any disturbing whining or cracking noises

No audible noise as far as I can tell, but I also bought the ground loop noise isolator just in case

No static noise!!!!

Mic is good, with good noise cancelling and road noise omission.

The only problem was a noise with the conexión but after baying a filter everything was fine

I did not buy the optional (Amazon recomended $9.99 ) ' Noise / static reduction ' and music comes across clear.

Cannot listen to music without annoying background static noises

It works great for the most part - good sound quality, and it connects pretty quickly to my phone, but it has a terrible hissing noise.

Good connection, but too much noise or static for my ml350.

The Soundbot connects to the call and the other person can hear me clearly, but it's just dead noise coming

A+ for the value.------Update: about 3 months in, I've been noticing some strange feedback / noise that drives me nuts

Also keep hearing a hissing noise after disconnecting the call.

It is annoying to receive calls in the device, volume tool low and lot of static noise.

It will turn on, sometimes connect, then make static noises and turn off and on several times

Thanks to BT 4.0 the quality of the sound is crystal clear, however, I highly recommend to use it with a good quality ground loop noise isolator to eliminate background humming in older cars or cars with poorly grounded wiring

I used the SoundBot in combination with a ground loop noise isolator (https://www.amazon.com/gp/product/B019393MV2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1&tag=patrifletc-20) to get excellent sound quality even at low volume levels

No interference or noise

I bought this for my 2008 Acura TL and it works like a charm no humming noise

I did have to purchase a ground loop noise isolator to get rid of the annoying humming when I would use it while charging it

I am taking one star because of the static noise

Just one thing buy the noise cancellation or static you will need it.

This bluetooth car kit makes an extremely irritating noise whenever the car input is set to Aux

I also bought a ground loop noise isolator (just in case).

constant buzzing noise = not good enough for me.

Bought the Mpow Ground Loop Noise Isolator for around $8 and that made the humming noise completely disappear.

Creates the worst high pitched noise