How much thought do you pay to your car key fob? This piece of plastic may be little, but can help you do more than just ...

Most key fobs have a little slot you can use to pop ... This process also works with other small devices, such as garage door ...

In many residential properties worldwide, gaining access to deliver a package or visit someone involves punching in a gate code, using a physical key or key fob or relying on an audio intercom.