The smart key tracker is a great gadget to alert you when you are about to forget your stuff. Pair it with the app and keep it running in the back, your phone and key finder will ring to alert you once it is disconnected, perfect for traveling to prevent loss. Portable: This key finder is small in size and light in weight, even if it is hung on a school bag or pet collar, it will not be sagging at all Long-lasting Battery & Stylish: The Bluetooth key tracker is powered by a CR2032 battery with a super long standby time of 3-6 months and can be replaced easily for long-term use. Delicate and elegant appearance that looks like a work of art Easy and quick location: just press the button and follow the beeps to find the key, backpack, luggage, wallet, TV remote control, glasses, dog collar, camera or other items; you can find the lost items very easily with smart tracking devices Multi-function: anti-lost alarm, GPS tracking, and can also be used as a self-timer remote shutter, selfie