New, unused bicycle security sticker with GPS tracking function. - Type: GPS tracking sticker - Color: Yellow/Red - Warning message: GPS tracking alarm - Function: Full-time GPS satellite tracking - Security: User security alarm system I use the same one myself, and I think it's very helpful for crime prevention and theft. Also, this sticker is just a dummy, and it does not have a GPS theft function, so please understand this before purchasing. Thank you for viewing.