The device can be easily connected to devices such as phones through the iSearching APP. Users can install it on their easily lost items and valuables (such as keys and handbags), realize the functions of losing items and finding phones. It is very practical and multifunctional, and also realize remote controlled photographing, recording and other functions. Features -Material: ABS -Size: 4.00X4.00X1.00cm/1.57X1.57X0.39in -Battery capacity: 210mAh -Battery: Button Battery(Not included) - It is made of ABS materials, light and durable, which can serve you for a long time. - When your , pet or key are out of your sight, don't worry about being stolen, you will be able to track the device in real time on phones. - It also has alarm function, which makes it more convenient and useful, perfect for use. - It has reasonable design, is powered by the button battery, and is easy to operate. - The device is compact and light, suitable for pets, babies, lanyard, and keychains. Package list: 1 × Tracking Device 1 ×Metal Ring