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Direct Wholesale QuadBand Mobile Phones from China Dropship
![]() China QuadBand Phones, QuadBand Mobile Phones, Quad Band World Phones direct from China manufacturers. For sample or small order, please purchase online. For large order, please contact us
New Products For February - Mobile Phones
Quad-Band Mobile Phones is support 850/900/1800/1900MHz network of mobile phone! For instance you now in China is to use 900MHz band network, if you go abroad to other countries, the national network is used 1900MHz frequency, you have to open The international roaming, you don't support this frequency for mobile phones, also cannot use the Internet! Quad band (also known as quad-band or quadband) literally means four bands. Most people come across the term when it is used to describe a mobile phone supporting four frequency bands. Having more than one frequency in one device is useful to enable roaming between different countries that peg the allowed transmission frequency at different values or to allow a better coverage in the same country. The GSM standard originated in Europe, where mobile phones occupy two frequency bands: one in the 900 MHz range and one in the 1800 MHz range. When GSM technology crossed the Atlantic to the Americas, it was impossible to reuse the same European frequency bands since those had already been allocated to other devices by the FCC. Hence, a different pair of frequency bands were made available for GSM use: the 850 and 1900 MHz bands. In summary, a quad-band mobile phone is used to designate a phone that can operate in the following GSM frequency bands: 850 MHz (U.S./Canada/Latin America/Brazil (Only the carrier Vivo)); 900 MHz (Africa/Europe/Brazil/Australia/Asia (ex Japan and S. Korea)); 1800 MHz (Africa/Europe/Australia/Asia/Brazil); 1900 MHz (U.S./Canada/Latin America). Some companies refer to this feature as "World Phone", due to the variety of bands a quad-band phone supports. Wholesale QuadBand Phones from China |