Product Description: Bluetooth Anti-Lost Alarm Sensor - Wireless Smart Key Finder Effortless Item Tracking: This Bluetooth anti-lost device offers a convenient solution for locating misplaced items. Easily attach it to your keys, wallet, luggage, or even your kids' and pets' belongings to ensure you never lose track of them again. Time-Saving Organization: By connecting the device to frequently misplaced items, you can save valuable time searching for your belongings and maintain a more organized lifestyle. Instant Alerts: If the anti-lost device disconnects from your phone, both the phone application and the device will alert you with a sound. This ensures you are immediately notified if an item is left behind or goes out of range. Reliable Range Notifications: The device operates effectively within a range of up to 25 meters (82 feet) without barriers. If your item moves beyond this range, both your phone and the device will beep to alert you, providing peace of mind. Convenient Location Tracking: The built-in location function allows you to view the last known position of your item on your phone. This feature is particularly useful for retracing your steps and quickly finding lost items. Remote Selfie and Recording Control: Enhance your smartphone experience with the device's remote control capabilities. Use it to take selfies or control the recording function of your phone, adding versatility to your daily activities. Long-Lasting Battery Life: Utilizing low-power Bluetooth technology, the device boasts a standby time of over six months. It also features easy battery replacement, and a single mobile phone can support up to eight anti-lost devices simultaneously. Keep your life organized and stress-free with this Bluetooth Anti-Lost Alarm Sensor, designed to provide reliable tracking and convenient features for all your essential items.