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 When the item did not know where it fel Open the mobile APP to view you will know where it is dropped 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 Compact in size, equivalent to a coin, it's easy to carry and can be conveniently placed in various locations. 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 Product parameter Product name: Smart object finder Product net weight: 21g BT version: BT 5.0 Product model: Y02 Use system: IOS/Android Standby time: 6 months Effective distance: 15 meters Battery model: CR2032 color:Black material: plastic Package Contents: 3 x smart object finders 1 x Instructions in Chinese and English Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!