Now in the examination room, concealed headphones is already a common tool in cheating equipment, in the use of magnetic resonance headphones need to be placed in the ear canal, and do not need external power, can be with mobile phones, walkie-talkies and other http://www.aliyun.com/zixun/aggregation/114. HTML "> Unicom, but the disadvantage is that the sound is relatively small and distorted, in the removal of the need for the use of magnets, if too tight you need to go to the hospital for help.
and the upgraded version of the MRI headset, the sound is clearer than the former, and also do not need an external power supply, as long as the button battery can be driven, coupled with its color design is extremely difficult to find, and because there is a fish line design, so take out easier, but, the frequency band and mobile phones interfere with each other, the teacher only through mobile phone interference can cheat.
And some high-level examination room will also check examinee Ear canal, based on this kind of situation, the mouth contains type earphone is invented, the mouth contains the headset principle and the microwave ear channel earphone is same, but the difference lies in its hiding position is different, this earphone can hide in the back gum, then transmits the sound through the Eustachian tube And this kind of earphone is extremely difficult to be seized, because when the examinee is discovered can swallow destroys the evidence, but, the examination teacher can search the examinee body to have a transmitter to detect this kind of earphone.
Headphones cheat a lot of problems, such as missing the answer after difficult to check, led cheating tools do not have this difficulty. Candidates receive the answer information through the LED screen display, you can slowly read, do not worry about missing some answers. The teacher can pay attention to check the examinee's watches, ballpoint pens, rubber and other tools, led cheat tools easily disguised through these tools.
Induction coil: Put on the neck or collar, with a piece of adhesive tape is completely invisible. There are two sets of connectors under the coil, one for the battery and the other for the phone.
Data pen: The appearance and ordinary pen is no different, the organ is to take off the holster, you can see the pen on the electronic screen, rotating pen can manipulate the display content.
Cheat WATCH: This is really a watch, the difference is that the table's transparent shell is a display, through the key operation, you can control the screen display content.
Ruler: The principle is the same, or in the ruler embedded a display.
Eraser: The outer packing of the eraser covers the screen embedded inside.
Wallet: Built-in circuit board.
Finally, is also the most advanced kind of cheating means, that is, Google glasses, Google has sold this year to a group of such glasses, especially for cheating in exams, so the teacher should pay special attention to this product.