You may always forget your key, wallet, pets or bag in daily life. With Our -lost can help you solve this problem, it your belongings precisely.We adopt PC materials, can keep it for a long time. It is also a great gift for friends and family. Features -Material: PC -Size: Approx. 3.5 x 3.2 x 0.8cm/1.38 x 1.26 x 0.31cm - The -lost device is connected to the APP to monitor of items in real time to prevent items from being lost or items in time. - Made of for durable and use. - When the -lost device and the are longer than the connection distance, the two-way call alarm will prompt you to check your belongings in time. - In the disconnection mode, open the APP to view the location of the -lost device and the recently disconnected, so that the items can be traced. - One-key search, -lost and -forget, simple operation, easy to . Specification -Rated Input: 3V -Rated Current: 3. -Rated Power: 10uW -Sound Volume: About 80-100db -Battery: 240mAh@3V -Endurance Time: More than 12 months (calculated by using 15 times a day) - distance: open ；wide indoor 30 , common indoor environment 10 Package list: 1 x -lost Device