Unfortunately that is an X-Ray device that can tell the size of your penis.
Locator Beacon: These small devices will send out your location to rescuers. Just make sure you get the waterproof kind.
'One of our job requirements is the ability to see and avoid animals with your street line paining device. It says here you're an expert with that.'
Self Heating Cushion: These heating devices react from your own body heat and do a great job. They make smaller varieties that can fit inside your clothing, so pack accordingly.