1. Material: ABS 2. Size: 42mmx8mm 3. Battery capacity: 225mAh 4. Buzzer sound size/frequency: 80dB/40+1.0KHz 5. Support operating system: iOS14.5/iPadOS14.5/macOS12.5 or above 6. One-click search and accurate positioning 7. No need to download the APP, only suitable for use on Apple iOS devices 8. Small size and easy to carry
