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Sony Ericsson Z770i Features

When looking for a mobile phone to buy, there are many factors that you need to take into consideration. First up, there’s the design. Are you looking for a classic, fold or slide phone?

Second, do you have a particular mobile phone brand and a specific model in mind? Third, which features are more important for you? Are you looking for a music phone or are you leaning more towards having a great camera phone?

Remember that there are hundreds of possibilities when it comes to buying a mobile phone – so you should make a decision first about the features or designs that you like the most.

All About the Sony Ericsson Z770i

Sony Ericsson is a Japanese-Swedish company which manufactures the following types of phones:
- Candy bar mobile phones
- Clamshell mobile phones
- Slider mobile phones
- Smart mobile phones

The Sony Ericsson Z770i is a sleek clamshell mobile phone with 3G capabilities, a slim form factor and great mobile phone features.

First up, here is a list of the specific features of the Sony Ericsson Z770i:
- TFT display with a 2.2-inch, 240×320 pixel coloured screen
- 2 Megapixel built-in camera
- USB, Bluetooth and 3G connectivity options
- 32 MB internal memory |
- Magnetic mouse pointer controlled by the navigation key

How the Design of the Sony Ericsson Z770i Measures Up

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Nokia E71 is Business Users Phone

One of the most recent smartphones released by Nokia is the Nokia E71. The product was made available July of 2008 – and it is one mobile phone that business users probably cannot do without.

Before delving deeper into the pros and cons of the Nokia E71 smartphone, here is a brief background about the Eseries mobile phones released by Nokia. This line of smartphones released by the largest mobile phone manufacturer in the world highlights a few things.

The Nokia Eseries of Mobile Phones

First, it is meant to be a business-oriented smartphone. As such, there should be enhanced connectivity. If you are out and about but you still have to monitor the ins and outs of your business, there should also be corporate e-mail push services supported by the smartphone.

The Nokia Eseries smartphones for business-oriented consumers include the following models:

- Nokia E50
- Nokia E51
- Nokia E60
- Nokia E61
- Nokia E61i
- Nokia E62
- Nokia E65
- Nokia E66
- Nokia E70
- Nokia E70-2
- Nokia E71
- Nokia E90
- Nokia E71

The features of these phones range from having a full QWERTY keyboard, Bluetooth connectivity, WiFi connectivity, built-in camera, memory card, FM radio and GPS or the Global Positioning System feature.

A Brief Overview of the Nokia E71 Smartphone

Here is the complete list of the features included in the Nokia E71 smartphone:
- Quad band GSM
- 2.4-inch QVGA screen
- Assisted and integrated GPS
- FM radio
- 3.2-Megapixel camera, with autofocus and LED flash
- 3G vidoe calling
- QWERTY keypad

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To Minimize the Dangers of Cellphone Usage

Cellphone usage worldwide numbers in the billions. If there is a possibility of injury from these devices, then a lot of people will be affected.

A cellphone is actually a radio transmitter and receiver. It sends and recieves radio frequency electromagnetic waves. The received signals are fairly low level, so I will concentrate on the signal transmitted from the cellphone.

Cellphones transmit mainly at frequencies of 900, 1800 and 1900 Megahertz (MHz). A microwave oven cooks food using a frequency of 915 MHz or 2450 MHz. In other words, the food is not fussy about what frequency you use, as long as it’s in that range, say 900 to 2500 MHz. Which means, cellphones use Microwave Oven frequencies.

A microwave oven puts out a power of about 1000 watts, on average. If you put your head in a microwave oven, it will take about an hour to cook to a nice sizzling crisp.

A cellphone transmits at a power of about 3 watts, and it self adjusts it’s power continually to compensate for poor signal paths, up to a maximum of 5 to 7 watts. Not much, but there’s a twist…

A microwave oven spreads it’s radiation over the whole oven cavity, so that the food is cooked uniformly.

A cellphone has a tiny, array antenna, measuring maybe 2 or 3 cm in length, and it’s right next to your ear. So 5 watts of power is radiating into your head into an area of perhaps 3cm by 0.75cm. That’s a lot of power when concentrated in such a small area.

The cellphone manufacturers have said that they have put “shields” into their phones to keep radiation risks to a minimum.

If you turn around while making a call, does the call cut out or the audio disappear at any time? No, it doesn’t. Radio waves, like light waves, travel in a straight line. If your head got in between the cellphone and the cell transmitter tower, then the signal should be blocked (shielded) by the shield in the phone, as the waves can’t bend once they’ve left the phone.

Which means that those microwaves are going through your head, all the time.

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