Simple and effective: press twice on the button or pull the key chain to trigger loud 130dB noise
The light is on with one click, you don't have to hold it. Bright light with low energy consumption.
Convenient to use as a keychain with flash light.
LR44 batteries are included. Easy to change batteries. LR44 is easy to buy on Amazon, Walmart,..etc
Bring you light and peace of mind: Ideal for anyone who would be alone to ask for help or to keep the bad wolf away.