Shenzhen, June 15th, 2010-GSM, Global System for Mobile communications (or the Acronym formally known as Groupe Special Mobile) is a wireless transmission standard used for mobile phones and, recently wireless modems. GSM and CDMA differ because GSM networks use a SIM card to store all the necessary information to send and receive calls where with CDMA phones everything is kept on the phones.
Quad band phones, or international phones as they are sometimes called, use four bands and can be used anywhere in the world. If you are looking to start a mobile phone business and you wonder what is an unlocked phone guaranteed to sell well and give you the least trouble with customers it will probably be this type of cellphone.
Here are three samples of quad band phones:
M002L (http://www.sourcinggate.com/m002l-quadband-cellphone-with-wifi-java-35-touchscreen-black-p-6245.html ) is a perfect handset that meets all people use. It is our strongly recommended mobile phone which was equipped with most of the practical functions or entertainment use software. M002L comes with piano-black body with whopping 3.5 inch high-sensitive touch screen, it has 3 pages menu including JAVA2.0, Opera, Voicemail, Network, and Contacts. The most important is that M002L supports Wi-Fi function for wireless internet viewing and analog TV function. Moreover, it has built-in G-sensor for changing the screen to landscape mode from portrait mode or playing G-sensor game.
KA09 (http://www.sourcinggate.com/cect-ka09-quadband-cellphone-with-24-touchscreen-white-p-4186.html ) is slim and compact cellphone comes with 2.4 inch high-resolution Touchscreen. Its size is the same as your palm, the perfect curves delivers cool handle. The concave-convex battery shell can anti-slide effectively. Three functional buttons lined a line below the screen; Power off/on button was placed on the top as well as a USB port. A stylus was tucked on the back.
KA09 has a compelling set of features. A 3.2MP camera was placed on the back for capturing pictures. Built-in G-sensor helps you change the screen to horizontal mode automatically. It also features stereo loudspeaker, WAP, TF card slot, FM radio, Dual SIM Dual Standby, Mp3/Mp4 player and Bluetooth.
Technology is changing our lives. 8310v (http://www.sourcinggate.com/8310v-dual-sim-dual-standby-analog-tv-quadband-works-p-5033.html ) adopts fashionable QWERTY keyboard, 35 keys were symmetrically placed under the functional buttons, pre-teens and young teens who mostly text and make phone calls should give this phone a look. Metal back shell delivers unusual handle, which along with protective sleeve can prevents your phone against being scratched. Analog TV function let you enjoy TV programs as you like. An 2.0MP camera was housed on the rear for shooting pictures. TF card slot and USB jack were on the two sides.
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