which will be influenced by cell phone jammer

Therefore, the cell phone signal within the teaching zone where cell phone jammer is used is very weak.
And the IVVR convergence: Relying on the mobile video video resources for the the IVVR business to provide video content. And the MobileMarket integration aspects: MM provided by the mobile video and video digital content, increase the customer touch point of the MM's attractive and mobile video.
Compared with the terminal manufacturers and software vendors, operators have a detailed database of customer information, should make full use of the database, based on the use of the marketing status of the mobile video business and business behavior around the household life cycle of customer phone video search stage, carry out differentiated marketing services, channels and business experience and increase customer retention, increase customer loyalty.
STN screen, STN (Super Twisted nematic LC which) screen, also known as super twisted nematic liquid crystal display screen. The traditional monochrome LCD display, color filters, and monochrome display each pixel in the matrix is divided into three pixels, displayed through the color filters red, green, and blue, in order to display the color the role of color as light green and orange-based. STN screen is a reflective LCD, it has the advantage of low power consumption, but less clarity in the dark environment. TFT screen TFT (Thin Film Transistor) screen. Technically "active matrix" to drive, made by thin film technology into transistor electrode. GSM contains 900 MHz and 1800 MHz (also known as DCS) which will be influenced by cell phone jammer .
By scanning method "take the initiative to pull the control of any one point on and off, the light source to pass under the polarizer up revealing conduction of light with the liquid crystal molecules, to achieve the purpose shown through shading and light transmission. Each pixel point pulse direct control of each node, thus, are relatively independent, and continuous control, this design not only improves the response speed of the display can accurately control the display grayscale, so making The TFT screen colors more realistic. The disadvantages and advantages of the wireless Bluetooth Bluetooth 1.1 standard is the same, for example, it is vulnerable to the mainstream 802.11b equipment interference. In the Bluetooth SIG announced the latest standard Bluetooth 1.2 device, the new release of the 1.2 standard provides better anti-interference ability of the same frequency, and to strengthen the ability of speech recognition, and compatible with 1.1 devices.