Mobile phone jammer becomes more and more important than before in the educational industry

The good jamming can be effectively provided through using  Cellular Phone Jammer.
RS MMC card, MMC card to maintain the same standard interface features, seven signal lines and location of the definition change, simply by adjusting the compression of the packaging technology of the memory interface controller core with the volume. One with 3-pin power supply, data manipulation with another 3-pin serial bus (SPI mode coupled with a needle used to select the chip), is the most simplified interface design. Low-cost serial bus clock frequency up to 20MHz, and can take up to 30 RS MMC address card. RS MMC operating voltage of 2.7 volts to 3.6 volts, write / read current of only 27mA and 23mA, low power consumption. Currently Nokia, Samsung, Siemens has released a new support RS MMC card smart phones, and is expected in the future will be more widely supported. Effective shielding can be supplied for the cell phone signal by using   china cell phone jammer.
This is a credit card is only about the size of the pluggable devices can be plugged to a computer or Pocket PC. PC card according to their thickness is divided into Type I, Type II and Type III in three models. Pocket PC is docked to the PC card devices will provide data storage or communication capabilities (eg, telephone line or LAN connection). History: MMC cards are SANDISK by the United States and Germany in 1997, Siemens jointly developed a versatile memory card. Features: MMC card, 7-pin interface, mainly used in digital cameras, mobile phones and some PDA products, relatively expensive. MMC card to a certain extent, a CF card reader to improve the shortcomings of slow and compact dimensions of 32mm × 24mm × 1.4mm, weight of less than 2 grams. Its impact resistance, and can be repeatedly read 300,000 times.  mobile phone jammer becomes more and more important than before in the educational industry.
MMC Card 4.0 standard provides a wider bandwidth and faster data transfer rate, and supports dual voltage operation mode. Work in the 52MHz, × 8 bit mode, data transfer rate up to 52MB / s.
Relative to the sd card: SD card because the standard was introduced to keep the equipment on the MMC card compatible, so although the device using the MMC card, SD card can not be used, but the equipment they use SD cards can easily use the MMC card, Pretec this year announced the line MMC4.0 standard speed 2GB MMC memory cards come out, so start close to the MMC card capacity CF card. Prospects: developed by Hitachi RS-MMC Card (Reduced Size MultiMediaCard, smaller-sized multimedia card). Already small in the MMC card, based on the shape of the MMC card is just half the length of more than half the longer MMC card (MMC length of 32mm, RS-MMC length of 18mm). Followed by installation of special adapter can also be used as a MMC card. More in line with today's mobile digital age, smaller, lighter, higher capacity needs. cell phone jammer is easy to hide and carry.