We have tested the Gunsonic APP with SNUGS ear-docks and they transform SNUGS into better than any electronic ear defenders for shooters.
The reviewed method is to put passive ear-defenders over iPhone earphones – but with Snugs offering over 30 dB of noise isolation – you can now use SNUGS without the passive ear-defenders for shotgun use.
Why do the instructors at Holland and Holland training ground in Northwood all use the Gunsonic APP instead of Electronic ear-defenders?
Watch the Pocket-Lint review on Youtube: https://www.youtube.com/watch?v=r3IAtKZ1fg8
See Jonathan Margolis – Tech Guru at the Financial Times – review on http://howtospendit.ft.com/phones/39753-silencer-is-golden