Apple has announced the launch of its AirTag item tracker on April 30. For one device you will need to pay $ 29 or $ 99 for a pack of four. The small washer-shaped device includes a built-in speaker, accelerometer and user-replaceable battery. The device uses UWB to provide more accurate positioning. Each Apple AirTag is equipped with an Apple U1 chip, according to the manufacturer, the device does not store user location data and location history inside the device. The Apple AirTag has appeared in the Apple Find My app and will play a sound on the tracker when the user searches for it, and will also use a haptic link to more accurately guide the user to a lost item.