Specifications:

Size	41.2*41.2*13mm/1.62*1.62*0.51in
Battery	built-in battery
Working voltage	DC 3V
Operating Temperature	- -5°C- -45°C (23°F to 113°F)
Working humidity	≤95% (no condensation)
Wireless	BLE 5.2
Buzzer	built-in ≥ 75db

Features:

1. Compact Size: Measuring only 41.2*41.2*13mm/1.62*1.62*0.51in, this anti-lost alarm is small and convenient to carry around. You can easily attach it to your keys, wallet, or any other valuable item and keep them safe.

2. Long Battery Life: With a built-in battery, this anti-lost alarm has a long battery life, making it reliable and practical. You don"t have to worry about replacing the battery frequently, and it will always be ready when you need it.

3. Wide Temperature Range: This anti-lost alarm works in temperatures ranging from -5°C to 45°C (23°F to 113°F), making it suitable for use in different weather conditions. Whether you"re in a cold winter or a hot summer, this alarm will function as expected.

4. High Wireless Compatibility: This anti-lost alarm uses BLE 5.2 wireless technology, which is compatible with most smartphones and devices. You can easily pair it with your phone and receive alerts whenever your valuable item is out of range.

5. Loud Buzzer: With a built-in buzzer of ≥ 75db, this anti-lost alarm produces a loud sound that is easy to hear even in noisy environments. You can quickly locate your lost item by following the sound of the alarm, which makes it a reliable and effective tool.

Package Include:

1x Mini Smart Tracker