Portable and Convenient: Compact size, lightweight design and low energy consumption. Handy like a key ring, easy to carry and use- Convenient.Anti-Lost & Forgot Alarm: Keep track of important things with ease. Simple to use, smooth app interface, loud, and durable. Moreover, when the device disconnects, it will record the last known location on the map, just open the app and find on the map where you lost the things. great for kids, luggage, pets, and more!Built-in Bluetooth 4.0 LE Tech to effectively protects your valuables like phone, key, wallet, pet, ect. Your valuables or pets from being lost or stolen within 75 Feet/25M effective distance range, when out of this range your phone and this device will automatically ring for a timely warning.App language: English, Chinese