The frequency channel of cell phone jammer is CDMA800

 The frequency channel of cell phone jammer is CDMA800.
2.5G mobile communication technology has been in business applications from 2G towards 3G convergence technologies, breaking the constraints of the 2G circuit-switched data transfer rate, the introduction of packet switching technology, which allows data transfer rate of a qualitative The breakthrough is a range of over between 2G and 3G technology. 3G is a mammoth project, the levels involved are many and complex, from the current 2G towards 3G can not click on the connection between, so a range of between 2G and 3G 2.5G. GPRS, HSCSD, WAP, EDGE, Bluetooth (Bluetooth), EPOC and other techniques are the 2.5G technology. cell phone jammer can control the range of about 40m (diameter).
Bluetooth technology, mobile phone radiation "completely resolved to an end. Bluetooth is the name of a medieval Denmark, a king, the king like a novel and known precisely coincide with the new face of Bluetooth products. Many media Bluetooth translated as "Bluetooth". Bluetooth technology originated in 1994 by companies such as Ericsson, IBM, Intel, Nokia and Toshiba, the main push of a the latest wireless technology agreement. As a short-range low-power wireless data transmission standard, Bluetooth operates in the 2.4GHz band, frequency hopping bandwidth of 79MHz, the maximum data transmission speed of 1Mbps, the maximum transmission distance of 10 meters, while achieving multiple devices connect and communicate. It is the product feature of cell phone jammer .
The team of experts from the World Health Organization, the IEEE said that the testing did not find the Bluetooth products of radiation on human beings. Only 1 mW output power of Bluetooth products, is one millionth of the microwave power is one-thousandth of the power of the mobile phone output, only a small part is absorbed by the body. Bluetooth radiation on the human body compared to directly using the phone to answer the phone and try the traditional connection headphones, greener safety, children and pregnant women can be assured that use. WI-FI explained: WIFI on handheld devices are widely used, and smart phones is part of it. Various GSM, CDMA mobile phones including PAS, 3G can be shielded.
Different from the earlier Bluetooth technology used in mobile phones, WiFi, with greater coverage and higher transmission rates, the WiFi phone has become a fashion trend of the mobile communications industry. WiFi band in the world without any telecom operator license free band, WLAN wireless devices provides a worldwide can be used, the cost is extremely low and very high data bandwidth wireless air interface. The user can browse the web in a WiFi coverage area quickly, anytime, anywhere and receive phone calls.