That's *CRC Contact Cleaner* - a precision electronic cleaning spray.
*What it's used for:*
1. *Cleaning electrical contacts/switches* - Removes dust, oil, dirt, oxidation from circuit boards, switches, relays, plugs, sockets. That "Leaves No Residue" part is key.
2. *Fixing electronics* - If your TV remote, volume knob, car AC switch, or phone charging port is acting up/spotty, this spray cleans the contacts inside so they conduct properly again.
3. *Safe for plastics* - Unlike regular solvents, this won't melt or damage plastic parts in your electronics. That's why it says "Plastic Safe Formula".
4. *Dries fast* - Evaporates quickly without leaving film, so you can power things back on after it dries.
*Important*: It says "De-active equipment before use" = Switch off + unplug everything first. It's flammable