BUILT-IN BIKE ANTI-THEFT AND ANTI-LOST TAG BELL: This tag is built in to prevent theft or loss of your bicycle.
APP COMPATIBLE WITH APPLE: It can be linked with Apples "search" app, so you can locate and track the bike and object you have installed. For iPhone and iPad only.
SOUND SEARCHING: The tag has built-in speakers, so you can ring and find it at close distance.
Reminder: Built-in mechanism to send app notifications when tag leaves
Waterproof Performance: IP67 waterproof rating, resistant to bad weather.
Bluetooth 5.0 Compatible: Connect to your smartphone via Bluetooth at close distance.
PRIVACY PROTECTION: Privacy protection is considered, so you can use it safely.
Replaceable battery: The batteries on the tag are replaceable and can be used for a long time. (CR2032 Lithium Coin Battery)
Easy Installation: Can be easily attached to bicycles with a diameter of 0.9 inch (22.2 mm). (with Phillips screwdriver)
Use as a smart lacquer on its own tag:
The tag can also be used as a smart lacquer to prevent forgotten items such as wallets and bags.

Product Specifications:
Product size (approx.): Tag W 1.3 x D 1.3 x H 0.3 inches (32 x 32 x 9.6 mm); Bell (W x D x H): 1.6 x 1.6 x 2.4 inches (40 x 40 x 60 mm)
Product weight (approx.): Tag 0.3 oz (8 g) / Bell 0.9 oz (26 g).
Compatible handle diameter (approximate): 0.9 inches (22.2 mm)
Communication Method: Bluetooth 5.0
App: Apples "search"
Speaker: Built-in (alarm play).
Battery: CR2032 coin type lithium battery
Continuous Usage Time: Approx. 1 year *Estimated (depending on usage condition)
Compatible OS: iOS 14.5 or later / iPad OS 14.5 or later
Bluetooth connection distance: within 32.8 ft (10 m)
Positioning Distance: Not limited
Operating Environment Temperature: -4 - 140°F (-20 - 60°C).
Alarm volume: 50 - 55 db
Tag waterproof rating: IP67
Main Materials: Tag: ABS resin, Bell: Aluminum alloy, ABS resin.

● This product uses the "Search " app that has been registered with the tag bell in advance and can be tracked via Bluetooth for a close distance of up to 32.8 ft (10 m).
If it is out of Bluetooth range (over 32.8 ft (10 m) or more, it can be found via the "search" network consisting of Apple devices that are popular around the world.
GPS not included.
● Positioning information is not real-time, but as long as it is on the Apple devices network, the final location is updated and the location is visible.

From the Manufacturer