Using method:

To deal with: lady-killer encountered lady-killer, pulled out a small pin alarm on the ass (usually tied to a major point of the doll in the above, good pull), bugs immediately alarm, close to 120 dB heyhey, ensure that lady-killer ran, the timid do directly scared hiccup fart......

Nursing care for the elderly: the elderly have a sudden illness, the night can be issued a warning alarm, notify the family, the elderly (or jogging) to travel, such as the case of lost, can dial out the metal rods of the individual alarm will be issued a warning, people heard in the vicinity will rush to see what is so noisy......

Now the children's security is getting more and more attention, the school bag hanging on a alarm, is not more a security

Principle:

Some people may not understand the specific principle of alarm, I explain to you, this product is not the primary sound alarm to obtain relief, but the deterrent effect, we have heard a word, a right, as long as people in bad times are psychological deficiency, so when the who will stretch the hand of evil of you, all of a sudden high decibel alarm sounds, what is his first reaction? Must be running, so this is the main principle of the alarm, followed by the sound of people around the attention, access to relief! I wish you all An An