hiya,,,you could use a heavy duty plastic bag with a zip seal top,,,,,like a freezer or food bag,,,the top off a baby feeder bottle inluding the screw cap and teat x 2 ,,,,METHOD,,,,you make a hole in the bag large enough to put the bottle top through and screw down the cap complete with teat onto the bag,,,cut the end in the teat just big enough for the cable connector to go through ,,and then tape over cable and teat,,,,do same at the top of the bag for phones,,,,put machine into bag and connect to cable,,,connect phones also,,,, fit a neck strap through top of bag above zip,,,or stick to bag with some strong and wide adhesive tape,,, switch on ,,set to auto,,,and zip bag up,,,,VOILA,,,waderproof,,,
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