Quickly Locating: the dog locator device can help to locate the item quickly and precisely after connecting to your mobile phone; Just press the button and follow the beeps, and it can locate diverse items like keys, wallets, TV remote controls, keychains, glasses, dog collars or other things within 15 m/ 49.21 ft Long Battery Life: adopting battery CR2032 power supply(battery not included), the standby time of item finders is estimated to be more than 6 months, featuring low power consumption, easy to replace the battery after running out of power Anti Loss Alert: in connection state, the phone and the key loss tracker will alarm at the same time when the locator device exceeds the preset range, and you can check the position on the map while they are disconnected Practical Presents: when you're scrambling to find your things, this GPS tracking tag is the nice thing you need; No matter whether you use it yourself or send it to your family, elderly parents, and forgetful friends, it will definitely make them feel warm and valued Bidirectional Item Finding: by clicking on the cell phone app, the smart finder tags will sound an alarm, and by double clicking on the button of the anti loss device, the phone will automatically sound as well, so that you can easily find your lost items