Are you constantly looking for your keys, phone, remote, or wallet? From AirTags to Tiles, end the hunt quickly and easily with one of the best Bluetooth trackers we've tested.

navigation device that uses the Global Positioning System to track the device's movements and determine its geographic position

Malaysian toll collection system

key finder

Wikimedia disambiguation page

form of surveillance; form of punishment outside of a prison but with restrictions of movement and with permanent surveillance

Home SMART tag™

pocket-sized card with embedded integrated circuits for security-related functions