Feature:1. Smart Tracker. Attach BT tracker to daily items such as car keys, kids\u0027 bags, wallets or pets\u0027 collars, then use our free app (Support both iOS and Android system) to track them.2. APP Remote Control. Download free APP, then pair it with your phone. And the BT tracker will generate \"beep\" sound within effective range when you press the button.3. Two-way Notification. When BT tracker and your phone are out of effective range, both your phone and tracker generate beep sound to remind you and help you track it back.Specification:Feature:Smart TrackerAttach BT tracker to daily items such as car keys, kids' bags, wallets or pets' collars, then use our free app (Support both iOS and Android system) to track them.APP Remote ControlDownload free APP, then pair it with your phone. And the BT tracker will generate "beep" sound within effective range when you press the button. Two-way NotificationWhen BT tracker and your phone are out of effective range, both your phone and tracker generate beep sound to remind you and help you track it back.Easy to CarryThis tracker is small and lightweight, easy to carry like a key chain hanging on your kids' schoolbag or pet's collar, etc.GPS TrackerIt displays location where BT disconnect via APP to help you find your items or search your car in parking site.Multifunctional DesignIt can also work as a remote shutter for selfie, so you can press the button to remotely control camera of your phone.Recording FunctionDouble click the button of tracker to start recording.Specification:BT version: V 4.0Material: ABSPower supply: Button cell (CR2032)App: iSearchingColor: Black, White, Blue, Pink, Red, Green (Optional)Item size: 38* 38* 10mm/ 1.5*1.5* 0.39inItem weight: 10g/ 0.35ozPacking list:1 * BT Tracker1 * Metal BucklePackage List:1 * BT Tracker1 * Metal Buckle