I got this kit the clean all my analogue and digital connections. I was pleasantly surprised by the results. It removed more oxides than I had expected. To my ears, there is also an audible improvement. I would describe it as a calmer and more detailed sound (i.e. less distorsion). Previously, I used isopropyl, but it's clear that alcohol only removes grease and dust, while leaving oxides that still impede the contact. So, from now on, it's Deoxit for me.