1、Anti Loss: Connect your phone via Bluetooth, and when the distance between you and the device exceeds the set range, it will trigger sound and vibration alerts to help track lost items. 2、Two Way Positioning: Help you find your phone with the two way positioning, you just need to press the button on the device, the phone will make a sound, quickly locate the phone. 3、Multi Function: Support for Tuya App, easy to manage and track multiple devices, customize the distance reminder range, select the sound type and volume, and accurately track items. 4、Long Standby: Low power consumption design, built in replaceable battery, under normal use, battery life can reach several months, no need to replace the battery frequently. 5、Compact and Portable: This anti loss device is small, lightweight, and easy to use, with a simple yet stylish look that makes it easy to pair with your key chain, bag, or other items.