USB Rechargeable & 210 mAh Power Consumption: Our upgraded security alarm is made with a USB cable and a rechargeable style for 1 hour to fully charge.No need to buy batteries later, which leads to overhead and saves money. At the same time, it has a large 210 mAh power and can be used to charge up to 12 months.
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It can be used immediately in times of emergencies such as walking or school at night, night work, travel, camping, mountain climbing, and other outdoor activities, as well as night roads when returning late home.Suitable for elderly, students and adults living alone.
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If you wear the "1" for travel, touring, camping, etc., you can use it immediately to save time and opportunities when you encounter dangers or bad guys.
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