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A portable sound or video product is a tiny electronic device that not only amplifies sound but also provides audio recording or viewing to various portable electronic devices like MP3 players, cell phones, hand held personal digital Assistants (PDAs), portable audio speakers, portable digital audio boards, laptop computer, desktop computers, game consoles, headphones, ear buds, etc. Portable audio products come in varied forms, brands, specifications, features and prices. They can be easily available on the Internet or from local electronics stores. http://www.pearltrees.com/thomasdavidson12#item315400823 These products were first manufactured for special purpose i.e. for news reporters, news anchors, weather forecast makers and other media professionals.Now a day's portable audio/video products are being used by all classes of people from all walks of life. One can use it anywhere they go and still carry with them their work or data. These gadgets have become so sophisticated that they can be used to listen to music, to record audio and video, to watch TV and movies, to use computers, play games, listen to etc. The best thing about these electronic gadgets is that you can carry it around with you wherever you go. Thus one can carry his work with him any where he goes.Portable sound and video products consist of audio output device like mixer, headset, digital to analog converter (DCA) encoder, digital audio interface (DAI) and speaker unit. There is a host of other digital and analog audio interfaces present for use along with these devices. There are different types of microphone used for making audio recordings. You can use condenser microphone, cardioid, -inch, -foot, angle, studio microphones, fiber-optic microphones and more. Microphone that comes with a computer built-in has an interface for connecting it to the PC and various software programs that help in editing and recording audio.Portable digital cameras have become quite popular these days. It can not only be used to take photos but can also be used to shoot video clips at the same time. The advantage of using portable digital cameras is that they have a higher storage capacity than the film cameras. The motion activated cameras also have special features like panning, zooming, automatic focus and flash.<img width="304" src="">Portable sound and video products come with different brands that cater to the requirement of different people. It is very important to choose the right brand and product that meets your need. Some of the best brands that are well known for their audio and video products are Sanyo, Casio, Canon, Sony, Penta, Samsung, Flip, Ricoh and Fuji. Some of the companies like Sanyo, Samsung, Penta, Sony and Canon manufacture all kinds of multimedia products that capture audio and video. Sanyo makes digital cameras that can be used for videos and also there are SLR digital cameras that can record video too.You should check if the product you wish to purchase can be used for both still pictures as well as videos before deciding on a particular brand. Some of the products are waterproof so you need to check whether they are suitable for use in the water. In order to capture crisp and clear audio you need a good quality microphone that is capable of picking up all the nuances in the audio. You should ensure that the microphone is of the right frequency if you wish to capture smooth natural tone.There are different types of products in the market ranging from high definition cameras to state of the art audio visual products. You can either buy the camera or the microphone separately. In case of a microphone, you need to check if it is capable of picking up all the nuances in the audio. If the microphone does not have an option for adjusting the microphone, you will not be able to get the best result. A high definition camera will allow you to take clear and crisp pictures. The picture quality will also vary depending upon the kind of camera that you purchase.There are certain products in the market that can be used for both, recording audio as well as video. Such portable devices are known as media players and recorders. Such devices can help you to transfer the data you have captured on a video and use it for future use.