Features1SMART ANTI LOST TECHNOLOGY: This locator is for keeping your keys, wallets, bags, and umbrellas safe. It alerts you when you move away from your belongings so you don't have to worry about losing them. 2EASY TO USE: Simply pull the insulation sheet to activate the finder; then use your phone's BT to search and connect to the device. If you lose your phone, double click the tracking button, and your phone will sound an alert. 3DISTANCE AND DISCONNECTION NOTIFICATION: The finder works up to 10 to 50 meters and will automatically record the last location where the device was disconnected from your phone. This helps you approximate the location of your lost item based on the last recorded point shown on the map in the app. Both cellphone and item finders would ring together and last about 10 seconds when disconnecting. 4CONVENIENT DESIGN: This key finder is easy to connect and maintain a stable connection. The smart anti lost finder is small and doesn't take up much space. The battery can last up to 180 days. 5IDEAL GIFT CHOICE: This smart anti lost locator is an ideal gift for your family and elders who frequently lose keys or phones. It can help them solve many troubles. It's also a fun travel companion that brings happiness when you find lost items. If an item leaves, an sound notification will sound.SpecificationItem Type: Smart finderMaterial: Silicone, ABS, electronic componentsWeight: Approx. 30g / 1.06ozBattery: 1xCR2032 button battery 80mAh(included)Package List1 x Smart Finder1 x Strap1 x Manual