What I am looking for is a way to quickly remind me when I am leaving something behind.
What I had in mind was two items that when separated after a certain distance, one would emit a sound or buzz.
The smaller the better. At least one of the two items would need to be very small. The bigger of the two should be about Credit card sized and no thicker then a pen, preferably smaller.
Any suggestions or ideas?
Thank you in advance
What I had in mind was two items that when separated after a certain distance, one would emit a sound or buzz.
The smaller the better. At least one of the two items would need to be very small. The bigger of the two should be about Credit card sized and no thicker then a pen, preferably smaller.
Any suggestions or ideas?
Thank you in advance