BT tracking Not afraid of losing items When the phone or other items cannot be found You can directly double-click the button to make a prompt tone<br> When the item did not know where it fel Open the mobile APP to view you will know where it is dropped<br> Automatic alarm Prevent Ioss When the phone is more than a certain distance from the object, the object will Automatically sound the alarm to remind you to take back the lost items<br> Compact in size, equivalent to a coin, it's easy to carry and can be conveniently placed in various locations.<br> Two-way search Easily retrieve items Double-click the round button of the anti-lost device. the phone will automatically sound By clicking the alarm on the APP the item will automatically sound<br> Product parameter Product name: Smart object finder<br> Product net weight: 21g<br> BT version: BT 5.0<br> Product model: Y02<br> Use system: IOS/Android<br> Standby time: 6 months<br> Effective distance: 15 meters<br> Battery model: CR2032<br> color:Black<br> material: plastic<br> Package Contents:<br> 3 x smart object finders<br> 1 x Instructions in Chinese and English