1. Project type: Emergency alarm 2. Material: ABS 3. Volume: 130 DB 4. Battery parameters: 4 x LR44 button batteries, 640 mAh (with built - in batteries) 5. Weight: Approximately 40 grams / 1.4 ounces 6. It is very loud: In dangerous situations or just when you need help, it can catch the attention of someone in the distance. 7. Use the flashlight: Press the button to use the flashlight. It provides quick illumination when walking on a dark road or looking for a keyhole. 8. A great gift: It is suitable for women walking alone, students, joggers, the elderly, children, women, and night - shift workers. 9. An essential tool: It is also an essential tool for travel, hiking, and camping safety supplies. 10. Easy to activate: Just pull the bob from the pin connected to the chain. When pulled, it makes a loud sound, but it is painless for the user.