Usage:

Deal with sex maniac: when encounter sex maniac, pull out the small bolt on the bottom of alarm (can tie a bit bigger cloth doll to be in at ordinary times above, pull better), bug bug sends out the alarm sound that is close to 120 decibels immediately, hey hey, assure to let sex maniac take off his legs to run, timid point perhaps directly frighten burp fart......

Care for the elderly: the old man has a sudden illness, evening can send out alarm immediately sudden illness, notify the family is sleeping, old man or the jogger outdoor travel, in case of lost, can be set aside personal alarm of metal bar and send out alarm, near a kilometer, heard will be coming to see what is so noisy......

Now the safety of children more and more by everyone's attention, a school bag to hang an alarm, is not more a security

Principle:

Someone may not understand the specific principle of alarm, I explain to you, this product is the first function is not sound alarm bailout, but a deterrent effect, everyone heard a word, have a guilty conscience, that's right, as long as it is when people are doing bad things is always a weak, so when someone wants to reach out her hand to sin, you sounded loud alarm sound, his first reaction is what? It must be running, so this is the main principle of alarm, followed by the sound to attract the attention of people around, get help! Wish everyone safe and sound!