emergency alarm Name: New egg-shaped women's personal alarm Color: white powder black blue Weight: 35g with packaging Features: 100% brand new, high quality. Easy to carry, low power consumption, and super alarm. Simple and effective personal safety device. Suitable for night shift workers, ladies, the elderly, disabled, runners and people traveling alone. When in danger, simply pull out the pin attached to the keychain to trigger an alarm and the alarm will give a loud alarm. When the siren volume is reduced, unscrew the battery cover on the back of the alarm and replace the new battery of the same type. Project Type: Alarm Keychain Material: ABS plastic + metal rod Size (length * width * height): approx. 6.2 cm x 4.2 cm x 2.2 cm / (2.44 * 1.65 * 0.87") Loudness: 120 dB Working voltage: 5V Precautions: 1. Due to manual measurement and slight color change of different settings, please allow 1-3 cm (0.4-1.18 inch) difference 2. When you are in danger, just pull out the pin on the key ring to trigger the alarm, and the alarm will make a loud noise.rm, which shocks the criminals. .