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In the headphone market today, people will be hard-pressed to find traditional headphones in a waterproof style. Instead, what is mostly meant by waterproof headphones are waterproof earbuds that may withstand extended contact with the water. There are many different waterproof headphones of this type, and they come in a wide price range. Very inexpensive … Read more

Flat Display Mounting Interface (FDMI) is a bracket standard for computer displays and flat panel televisions. The mounting bracket required to attach a flat panel to a wall must have hole patterns that align with holes pre-drilled into the back of the display. The Video Electronics Standards Association (VESA) is responsible for setting FDMI standards, … Read more

A document management system is a program used to store and control the documents a company uses. Before the advent of computers, a document management system was simply a process of filing a company’s hard copy documents, such as purchase orders, engineering changes, and schematics, in a systematic order to make retrieval easier. Also known … Read more

Choosing the best pair of used headphones is a lot like buying a new set, but there are some unique factors you may want to consider. The first step to take when buying any set of headphones is to think about what you need them for, such as listening to music, playing video games or … Read more

A conference phone is a special type of telephone that allows multiple people to have a conversation at one time. For example, a company may organize a business meeting that is to include 10 key employees. If only six of the employees can attend the meeting in person, the other four may have to attend … Read more

A travel printer is a printer which has been designed for portability, so that people can easily carry it with them. Travel printers are useful for people who are traveling, hence the name, but they are also handy for people who want to bring a laptop and printer to events, presentations, and other settings where … Read more

Digital books, also known as electronic books or e-books, are texts that are created and offered for sale as an electronic document. Books of this type can be downloaded to a hard drive and read using a personal computer or one of several different types of handheld devices known as digital book readers or e-readers. … Read more

Virtual reality sets are a means through which human beings attempt to establish a sense of presence in either a virtual world or the real world at a different location. They differ from each other in the way the user interfaces with the technology. Window on world (Wow) systems, mixed reality systems, and immersion virtual … Read more

There are several different methods for measuring current, each with advantages and disadvantages. Current is defined as the flow of an electrical charge through a component, such as a wire or light bulb. The level of current, usually expressed as amperes or “amps,” is proportional to the amount of electrons that are moving through a … Read more

Two types of rechargeable solar batteries — nickel-cadmium (NiCd) and nickel-metal-hydride (NiMH)— power many commonly used handheld devices. The attributes of these batteries make each one appropriate for specific applications. Common sizes include AAA, AA, C, D and 9 volts for NiCd batteries and AA and AAA for NiMH batteries. A solar battery charger usually … Read more

Choosing the best mini headset for your handheld device or even for a larger system in the home can be intimidating, given the range of models and designs on the market today. With options ranging from the elaborate to the very simple, choosing the right headset means comparing several different makes and models and selecting … Read more

Home theater subwoofers are generally classified by their brand, their size and enclosure, and whether they are powered from a dedicated source. The size and shape of the enclosure, also known as the speaker box, play a large part in the quality of bass sound the subwoofer emanates. Many different speaker manufacturers make home theater … Read more

Speech recognition systems began to be developed in the 1950s and 1960s. Computer programs that can recognize the sound of a person’s voice and identify words typically require large memory reserves. Phone speech recognition in the 21st century is included on many mobile phones that have multiple gigabytes of memory. The technology can be used … Read more

The popularity of laptop computers has led to several types of laptop accessories. Some laptop gadgets are meant to protect the computer, such as laptop bags that protect the exterior and encrypted hard drives that keep the interior safe. Other types of laptop tools can extend the use of the computer, such as through extended … Read more

Eco gadgets come in many different forms and may help a person monitor his or her usage of resources or may simply provide ways to accomplish tasks in an eco-friendly manner. Many eco gadgets are for use in homes or businesses and help reduce energy consumption. Solar devices and other energy creation gadgets can allow … Read more

The HD digital video camera is considered by many experts to be a major advance in the world of film. In addition to the creation of high-end cameras used to make major motion pictures, the arrival of high-definition cameras in the open market allows consumers to record high quality images that can be processed and … Read more

A breadboard circuit board is a reusable device that serves as a platform for building electronic circuits. These devices are often used in prototyping, and include a number of holes that electronic components, such as integrated circuits (ICs), resistors, and wires, can be snapped into. Some of the holes are connected to others by copper … Read more

You can choose the best free wireless device by looking into each wireless provider and determining which plan is right for you. Most free devices are given for signing up with a particular provider, generally for a term of no less than two years. Additionally, if you do come across a free device elsewhere, it … Read more

A SIM card is a small chip that is inserted into a compatible phone thereby allowing the connection of a certain telephone number. The information stored on a SIM card can include other people’s telephone numbers, email addresses, and messages that have been sent and received. The loss or damage of this chip could be … Read more

Recording on tape may seem old-fashioned, but it still exists in the 21st century. It can offer convenience, for example in producing recordings that can be played in older vehicles that lack a CD player or digital audio input. It can also offer reassurance by providing something tangible. Recording can be made easier by choosing … Read more