Chosen Solution
As this unit is waterproof is there any reason why I cant drop it in an ultrasonic bath to clean gunk out of speakers and the charge plug hole??
just use a tooth brush and alcohol for the speakers & a pair of tweezers for the charge port
Phone waterproof does not exist all phones in the market they are water resistance due to speakers and microphones need holes to work. Ultrasonic Machine is a bad idea even a water proof thing can be damaged due to ultrasonic treatment that can destroy the seal, and speaking about cosmetics ultrasonic machines can damage the paint on your phone. First guy has the answer.
