MP4 Watch Player Online Video Demo

MP4 Player watches are digital watches that play music and videos right from your wrist. Not only that, but they can also be used as MP3 watches for you to listen to all your favourite MP3 music files on the go. The hi-res OLED screens make the viewing of your favorite movie files and music videos seem to come alive in their bright and vivid color displays. Add in the built-in voice recorders and you have a completely unique portable multimedia player that can be used at home, in the office, at play or on vacation.



These all-in-one features of the MP4 MP3 playing watch, combined with the convenience of being small, slim and portable is one of the most attractive features about a MP4 MP3 wrist watch.



This user video, demonstrating the original MP4 watch, gives you a great idea of all the cool capabilities of this portable multimedia player.

 

 

There are many types of MP4 watch models. Some include Bluetooth functions so you can communicate wirelessly with other Bluetooth enabled devices while others have USB capabilities to help download files and charge at the same time. The memory capacity of the MPEG-4 watches range anywhere from 1GB to 4GB with storage sizes getting larger every time. Battery life has also been improved where a fully charged MPEG4 watch, or some like to call a MP4 wrist watch, can last anywhere from 7 - 9 hours of continuous playing. Some of the MP4 watches are also RF transmitter watches so that you can listen to the music in the comfort of your own car. All in all, the potential of the MP4 watch is still in its infancy stage as manufacturers discover more and more new ways to cram cool functions into these portable multimedia players.

 

Check out these cool MP4 Player Watches which includes a full color OLED display

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Car Video Monitors Abbreviations and Their Definitions

A quick quide for beginners to the common abbreviations associated with car DVD entertainment systems.

The so called auto DVD entertainment system has gained incredible popularity mainly due to enthusiasts of "car modding" or "suped cars" — so as you might expect with anything that combines hobbyist enthusiasts with geek cool gadgets, there’s a fair bit of jargon to cut through especially if you are a car mobile video newbie.

• 
  

  Changer
  = a CD changer; a device which holds several CDs and plays them on demand without having to eject or manually sort discs. Needless to say you can now get DVD changers too.
  

• 
  
  

  Crossover
  = a device that limits the range of frequencies sent to different speakers.
  

• 
  

  DIN
  = it basically stands for "Deutsches Institut für Normung" (DIN, the German Institute for Standardization), similar to ISO. The relevance for car DVD systems is that DIN means a standard sized dashboard slot, so 1 DIN means the device takes up one slot, and 2 DIN means the unit is ‘double-decker’ and uses the space of two slots.
  

Examples of a 1 DIN and 2 DIN Car Monitor

DTS
= "Digital Theater Systems" multichannel audio — simply another surround-sound standard like Dolby Digital 5.1 — Pretty pointless in your car but it’s another thing to show-off.

DVD-A
= DVD audio — Similar to a music CD with the exception of more features and higher quality.

RF
= Radio Frequency — Refers to things such as wireless headphones. RF is generally better than Infra Red because you do not have to be in the clear unobstructed transmission or line of sight wireless transmitter.

Inverter
= A power supply device that you can plug into your car dashboard cigarette lighter to supply AC to energy-demanding devices.

In-dash
= A device such as a in car DVD player installed in your dashboard, usually in the same slot of your old car radio.

GPS
= Global Positioning System — this essentially means navigation / map display software linking to a signal receiver and a readout on your car monitor or screen.

GUI
= Graphical User Interface — ie: you can control the device using on-screen menus, often with a touch screen monitor.

Headliner
= The coverings that make up the ceiling / roof inside your car.

Modulator
= A FM transmitter that turns an audio input source, for example an MP3 player or audio line-in, into a radio signal for you to tune into using your car stereo.

Monitor
= A display screen that receives a signal from a car DVD player or car TV tuner — if a product is described as simply a "Monitor" it typically means it does NOT include the actual player such as a car DVD player unit. This is fine if you are buying each unit separately or you are building a full in-car entertainment system piece by piece.

Motorized
= Where the TFT LCD screen of the display, usually in a car in dash unit, neatly folds and slides inside its housing when it is not in use.

Motorized 1 DIN Touch Screen Car Monitor ~ Open & Closed

Power port
= A "powerful" name for the little dashboard cigarette lighter socket

RCA
= A red and white (for audio) and yellow (for video) connector used for connecting your car DVD player to your car monitor or your home media center to your widescreen TV.

RDS
= Radio Display (Data) System — The cool function with the ability for your car radio to display detailed data such as the name of the station or the track name from FM radio signals.

Receiver
= The device that "transmits" your video signal to a screen such as a car DVD player. Confusing? Yeah, we know.

S-Video
= Is a high quality cable for analog video signals that carries the video data as two separate signals, both brightness and color.

Sub
= Commonly known as a subwoofer. Refers to either a driver or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, typically from 150 Hz down to 20 Hz.

Toslink
= A standardized optical fiber connection system. Its most common use is in consumer audio equipment where it carries a digital audio stream between components such as MiniDisc and CD players and DAT recorders.

Versatile
= a vague term that generally just means “feature rich”, eg. a car DVD player that also has a built-in radio and connects with external storage devices.

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What Does TFT, LCD, OLED, LED, MP4 and Car DVD Screens Mean?

When you’re looking at electronics, what kind of screen should you be buying? What’s better and what do all the acronyms mean?

 

LCD, and TFT, and OLED???. Having trouble with your technical acronyms when you look at screen specs for an MP4 or a Car DVD Player, or anything that has a screen? Well, that's why we present this little guide to aid all those stuck in the confusion and misery caused by those often unintelligible tech specs.

A good explanation of what all of these are can be a little tricky and really really wordy, so this is just going to be a very basic overview with the Advantages (pros) and Drawbacks (cons) all laid out for you.

Knowing what the letters mean is the first step to enlightenment, so lets begin with a quick breakdown of what those pesky little letters stand for-

• LED - Light-Emitting Diode


• OLED - Organic Light-Emitting Diode


• LCD - Liquid-Crystal Display



• TFT-LCD - Thin Film Transistor Liquid-Crystal Display (note that this is the compete name, but it is often just shortened to TFT)

So know comes the fun part. Here are the very very basic definitions of what the screens mean/do, some pros and cons for each, and our own little overall opinion of them.

 

LED

LED is the most basic of all in this list. It can basically be called a substitute for a light bulb, but probably the most widespread. Very useful for displaying information on a small screen.

 

Pros

• Cheap Cheap Cheap...and, oh yeah, Cheap! - Cheap to make, cheap to use. Pass the savings on!


• Reliable - Very long lasting screens that do not burn out easily with long term use.


• The Future - The future looks bright (pun definitely intended) for LED.


• Brighter screens, more colors, more uses, less price.

Cons

• Display - Really this kind of screen is just for showing characters, information and the like. If you are looking for high quality pictures, forget about it.

Overall
Great for information displays on screens of MP3's and gadgets that flash with bright colors. Not that great for anything else.

 

OLED

OLED is one of the cooler screens that you can get for a product. It is similar to an LED in that it has a light emitting diode, but that is where the similarities end. As to the organic part of the name, well that involves a lot of explanation to really understand,
but basically it uses conductive organic materials rather than conductive crystals. Plus the screen is one complete structure layered on top of each other. Understand? We did say it could be a little wordy.

 

Some samples of a Metallic MP4 Player Watch which includes a full color OLED display

 

Pros

• Color - OLED pixels directly emit light, so the range of colors is very high, very bright, and very sharp.


• No Backlight - An off OLED screen uses no backlight, meaning that it produces no light while off and uses no power.


• Viewing Angle - pixel colors will appear correct and unshifted even if you view the screen at an angle of almost 90 degrees.


• The Future - Exciting things are going to be coming out with OLED screens. They are very flexible, can be very thin. It can be printed onto flexible substrates so just imagine a normal looking pen with a roll out OLED screen. Yup, that is the future.

Cons

• Screen Size vs Price - Sad but true. Most times you will not be able to get a larger OLED screen for as cheap as an LCD one.


• Lifespan - The lifetime of the organic materials is a factor. For PMPs it is not so bad, as they are off for very long periods, but larger screens that are on for extended times simply won’t last as long as a LCD. There is work being done on this, but it is not quite ready yet.


• Water - Do not, under any circumstance get your OLED Screen wet. We mean it! Because if you do it can damage the organic materials, and really dampen the colors and sharpness.

Overall
Incredible screens with great colors and details, but really better overall at this time with smaller screen PMPs (1.5-2.0 Inch screens)

 

LCD

Ahh LCD, where would we be without you? This has been one of the standards of the electronic business for quite a while. They are basically liquid crystals that are activated by electric current and are constructed of layered materials (liquid crystal that is sandwiched between layers of glass or plastic).

 

This Car Rear View System clearly displays what’s behind you when you are reversing or parallel parking, on a color LCD screen.

When the LCD is turned off, it reflects images like a normal mirror.

 

Pros

• Price - Cheaper than most of the other screens that you will find. A lot of bang for the buck.


• Screen Size - Very large screen sizes are possible with a LCD. The resolution for these larger screens can be quite high as well, but the higher the resolution, the higher the price of course.

Cons

• Image - LCDs will display images very well, but only in their native resolution. It is best to have your images the same resolution as the screen or there will be noticeable loss of clarity .


• Viewing angle - The larger the angle from the screen you are, the worse the image will look.


• Backlight - LCDs need a backlight to illuminate the screen, and draw quite a bit of power

Overall
One of the best choices for a medium priced screen. You won’t get as clear a picture as maybe some of the others, but you will not be disappointed at all in what you get. Well established and reliable technology, especially good for small handheld screens.

 

TFT-LCD

TFT is very similar to LCD screens in construction, but improves on the image quality. It uses an Active Matrix rather than the Passive Matrix used still used in many LCD products. In essence it is an evolved form of an LCD Screen.

 

These Bluetooth Touch Screen Car DVD Players features high resolution TFT Screens

 

Pros

• Price - Definitely one of the features. A little more expensive than a LCD screen but worth it if you want those clearer images.


• Image - Like LCD it produces very clear images, but they are much brighter and sharper. You still should keep the resolution the same however.


• Screen Size - Large size TFT screens are no problem and are very nice to look at.


• Future - The future looks good for TFT screens, and more and more products screens are starting to use them than almost any other.

Cons

• Viewing angle - Less of a problem than a LCD, but you will still see a difference if you view it at a larger angle.


• Backlight - TFT screens use a backlight that’s a bit of a drain on a battery if you’re using a portable device.

Overall
What more can we say than this is a better LCD for generally a little more money? Expect to see many screens in the future that use TFT. Especially good for Car DVDs in our opinion.

 

Thus ends our little look at different kinds of screens that you will often see with products that you are buying or selling.

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