AirTag if you try this amazing technology for your precious things then you can use  Apple Air Tag, the best Air Tag 2021.

Apple AirTag: AirTag




Keep track of and find your items alongside friends and devices in the Find My app
A simple one-tap setup instantly connects AirTag with your iPhone or iPad
Play a sound on the built-in speaker to help find your things, or just ask Siri for help
Precision Finding with Ultra-Wideband technology leads you right to your nearby AirTag (on select iPhone models)
Apple Air Tag

Apple Air Tag

 

Find items further away with the help of hundreds of millions of Apple devices in the Find My network
Put AirTag into Lost Mode to be automatically notified when it’s detected in the Find My network
All communication with the Find My network is anonymous and encrypted for privacy, Location data and history are never stored on AirTag
Replaceable battery lasts over a year
AirTag is IP67 water and dust resistant
Make AirTag yours with a range of colorful accessories, sold separately

Technical Details: Apple Air Tag

Apple AirTag

AirTag with CR2032 coin cell battery installed, Documentation

Make AirTag yours with a range of colorful accessories, sold separately

Precision Finding

Precision Finding compatible with iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12, iPhone 12 mini, iPhone 12 Pro, and iPhone 12 Pro Max. Testing was conducted by Apple in March 2021 using preproduction AirTag units and software paired with iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12 mini, iPhone 12, iPhone 12 Pro, and iPhone 12 Pro Max units running preproduction software. Battery life is based on the everyday use of four play sound events and one Precision Finding event per day. Battery life varies with usage, environmental conditions, replacement battery manufacturer, and many other factors; actual results will vary.

Splash, Water, and Dust Resistance

AirTag is splash, water, and dust resistant and was tested under controlled laboratory conditions with a rating of IP67 under IEC standard 60529 (maximum depth of 1 meter up to 30 minutes). Splash, water, and dust resistance are not permanent conditions and resistance might decrease as a result of normal wear. Refer to the Safety and Handling documentation for cleaning and drying instructions.


Connectivity: Apple Air Tag

Bluetooth 5.0 for proximity finding Apple-designed U1 chip for Ultra-Wideband and Precision Finding NFC tap for Lost Mode

Speaker, Built-in speaker

Accessories, Make AirTag yours with a range of colorful accessories, sold separately

Battery, User-replaceable CR2032 coin cell battery

Sensor, Accelerometer

Diameter,1.26 inches (31.9 mm)

Height, 0.31 inches (8 mm)

Weight, 0.39 ounces (11 g)