Use this $18 USB borescope for looking in walls, or other tight places

Want to look in your walls, Rob? Try this USB endoscope!

I wanted to look inside the cylinders of my motorcycle, just for fun. Rob has a secret room, hidden in the walls of his house. This 5M long fiber optic cable sports a 2.2 megapixel camera, 6 adjustable LEDs for lighting, and a small array of tools to affix for poking or dragging.

You can use this with a laptop, or with a USB-A to Mini-USB adaptor it'll work with USB OTG ready Android phones and tablets.

DBPOWER 2Million Pixels 5M USB Waterproof HD 6LED Borescope Endoscope Inspection Tube Camera via Amazon