ZIPREMINDER is a device that prevents the loss of personal belongings in unzipped travel bags. Most anti-theft zipper tags on the market operate with an electrical battery that needs to be recharged and only triggers an alarm when the two parts of the zipper are separated by force. However, these models do not sound an alarm when the zipper is open. ZIPPREMINDER offers a solution to these scenarios through its mechanical design and sounding a tone anytime the zipper of a bag is opened without force.