Great product and works as intended with my Bluetooth device.

Initially, this thing worked exactly as intended

It works as intended.

still works well as intended

Works as intended

This product works exactly as intended

Works as intended.

worked as intended, solved my problem

Eliminated the noise as intended.

Works as intended

The device works as intended, it helped get rid of feedback in my headphones (Sennheiser 569)

It works as intended.

Works as intended.

Other wise I can't hear it during normal use, I highly recommend this product of you need an in line filter for your audio input while you are trying to charge the device.