Key Finder: With the latest Bluetooth 4 technology, this smart anti-loss device is as practical as a keychain, easy to carry and use, keeping your valuables safe and close at hand. /p> SMART AND EASY TO INSTALL: The Bluetooth remote works easily with the app. This smart search function also works as a selfie shutter to find your keys. Multifunctional: The anti-loss alarm protects your valuables, children, wallets, cars, bags, and pets. The key finder also provides the latest geolocation function on a map via the app, helping you recover items and find cars in parking lots. Remote Control: Long range; the control range for star search and position tracking is 10-15 m. Remote Control: You can remotely control your phone's camera or recording with just the touch of a button. You can take amazing wide-angle selfies with the front or rear camera. As a remote shutter release with a selfie function, you can easily capture your happiest moments. Product net weight: 10g. Product gross weight: 24g. Material: ABS. Product dimensions: 52 x 31 x 11 mm. Battery: Button cell (CR2032). Application: Research/Kindergarten. Color: Black/Pink/Blue/Green/White Package contents: 5 keychains Only includes the above-mentioned package contents and does not include other products. Note: Photographic lighting and different displays may cause the color of the item in the picture to be slightly different from the actual item. The measurement tolerance is +/- 1-3 cm.