Our anti loss key tracker is made of ABS, 100% safe, practical and lightweight. Its dimension is 1.22''W x 2.05''L x 0.43''H, which is easy to carry and use. With a keychain, which supports you to hang the GPS locator on your phones, keys, bags, umbrellas, pets, wallets, luggage and other important items, convenient for you to find them quickly and easily, bringing a lot of convenience to your life. Download the APP to your smartphone and it will work, the GPS trackers for kids are easy for your operation, and you just need to press the button for a few seconds, then the receiver will sound beeps, after that you can use your cellphone to search and connect to the device, if you lost your phone, you can double press the button, then your phone would alarm.