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 don't get lost or misplaced 3. IP67 waterproof and dustproof, no fear of wet environments 4. User-friendly: Simple setup and user interface accessible to everyone, enhancing your daily security with minimal effort 5. Compact design: Small and discreet, easily attaches to a variety of items without adding bulk Battery:CR2032 Working voltage:DC 3.0V Wireless:BLE 5.2 Wireless distance:40m(open visual distance) Buzzer:Built-in 75 db(at 10cm) Working temperature:-5 to 45(23F to 113F) Working humidity:95percent (no condensation) (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: plastic Package Contents: 2 x black anti-lost device 2 x white anti-lost device Only 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.