1. Enhanced Connectivity: Leveraging the latest Bluetooth technology, seamlessly track your valuables directly from your for iOS device using the for Find My app.2. Versatile: Great for tracking pets, keys, and bags, ensuring important items dont get lost or misplaced3. IP67 waterproof and dustproof, no fear of wet environments4. User-friendly: Simple setup and user interface accessible to everyone, enhancing your daily security with minimal effort5. Compact design: Small and discreet, easily attaches to a variety of items without adding bulkBattery:CR2032Working voltage:DC 3.0VWireless:BLE 5.2Wireless distance:40m(open visual distance)Buzzer:Built-in 75 db(at 10cm)Working temperature:-5 to 45(23F to 113F)Working humidity:95 percent (no condensation)(The product appearance and printed words depending on the batch, but this does not affect use)Color: As ShownMaterial: plasticPackage Contents:2 x black anti-lost device2 x white anti-lost deviceOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.