Welcome to our store！</br>1、130dB loud sound, which can attract people's attention, effectively deter attackers and seek help from people around. 2、Compact size and light weight, it can be hung on bag, wallet, key, etc., convenient for you to carry around. 3、Simple to operate, just pull out the plug to activate the alarm, which is very easy to use. 4、Suitable for elderly people, sports people, disabled people, ladies, students, etc. 5、Made of high-quality ABS material, long durability, smooth and delicate feeling. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type: Self-Defense Alarm Material: ABS Metal Chain Length: Approx. 10cm/3.9in Battery: 3 x AG13 Button Battery, 90mAh (Built-in) <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Self-Defense Alarm 1 x Manual Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>