In the third year at university, I had the first mobile phone in my life, a Motorola cell with the Bluetooth function. I was excited when I finished my maiden wireless data transfer. This experience taught me that technology was neither too far away nor too expensive.
So I felt just well the first time I saw a Tinydeal QC tested a Bluetooth headphone in wireless phone call. But that reminded me of something.
When I was a freshman in university, a classmate told me how to cheat in exams with a Bluetooth phone. I had never cheated before, so didn’t quite understand.
Now I guess the trick should’ve been like this: 1. Pair a mini Bluetooth earphone with the cheater’s cellphone. 2. The cheater’s phone and accomplice’s get through before exam starts and keep through throughout the exam. 3. The cheater hide the mini earphone in his ear waiting for the accomplice’s answer. 4. The accomplice finishes his exam quickly, records the answer on scratch paper, hands in the exam paper, and goes out to read the answers to the cheater through cellphone.
You may think I’m gonna talk about a way to cut Bluetooth connection. I thought that way too, until I see this stuff (http://www.tinydeal.com/p-px8ip2-p-18585.html) which cuts phones from getting through, instead.
It is able to build a electric wave network to block all signals from CDMA, GSM, WCDMA and DCS networks. When it is running, no cellphone within 5-10 meters away can have phonecalls or SMS. And four sets would make sure a classroom is clean.
It is very easy to use – just screw the antenna and press the start button.
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