ZigProxy Caller identification, or caller ID, provides knowledge of who is on the other end of a phone call before a person even answers the phone. It is implemented on telephone consoles and can also be viewed on a television (TV) set. Caller ID for TV is attained using a separate device or ordered as part … Read more
An LED keychain can be an important accessory to keep on your keys; it can help to light your way in dark places, or even help you to signal for help. LED keychains are typically fairly inexpensive, and can be found in most discount stores and sporting goods stores. Selecting the best LED keychain is … Read more
There are two major types of caller ID cards, and a number of different companies produce each of them. One of the most common types of cards is needed to provide caller ID services to additional phones that are part of a large network. These cards are often available from phone manufacturers, and allow an … Read more
Subwoofers are complete loudspeakers that handle low-pitched audio frequencies, or bass. There are different types of subwoofer systems — some include powered subwoofers, nonpowered sub-woofers, and tube subwoofers. Powered and tube subwoofers are generally more expensive than nonpowered. Subwoofer systems are used by live bands, event production teams, and recreational music listeners and movie watchers. … Read more
A 3D projection TV has a type of screen that is capable of displaying 3D images for people who are wearing specially polarized glasses. These screens are generally used in people’s homes and can range in size from a small screen that is designed to be viewed up close to a large screen that provides … Read more
A capacitor is a device used in electronic circuits to block DC signals, while still allowing AC signals to pass though. To accomplish this, a multilayer ceramic capacitor uses a series of alternating metal disks, called plates, and ceramic disks, called dielectrics. This type of capacitor is inexpensive, versatile, and widely used in electronics of … Read more
A photonic integrated circuit is a compactly packaged chip or electronic circuit that specializes either in the generation or in the processing of modulated light energy used in optical communications. It may also be classified according to the frequency band associated with the light energy used in the optical communications link. Before the year 2000, … Read more
There are a few different ways in which you can create a Quick Response (QR) code for use in advertising, graphic design, and other applications. These codes are typically black and white images consisting of lines and squares that can be read using a proper scanning device. One of the simplest ways to make a … Read more
A digital telephoto lens is a type of photography lens used in conjunction with a digital camera. This lens is used for viewing objects far away from the person taking the photo, and is much shorter than the typical amount of space necessary to capture such images. The lens is shortened by using a series … Read more
Candles can give rooms a warm and inviting glow, but they are not always safe to use. Rechargeable candles can be a safer alternative to traditional varieties, because they have a very similar appearance. These lights are powered by placing them on a charging unit until they are ready to be used. They come in … Read more
A global positioning system (GPS) is a device that helps travelers navigate from one location to another. The right motorcycle GPS can depend largely on how the device is mounted onto the vehicle. It should provide some type of protection from extreme weather and road hazards while still being easy to read in various levels … Read more
The word geocaching is a participle made from the roots geo meaning “Earth” and cache meaning “a temporary stash,” and it was coined by Matt Stum. People around the world go geocaching, using GPS and maps to locate caches that others have hidden for the sake of the game. The term geocache refers to the … Read more
A rotating surge protector is an electronic device that allows multiple items to be plugged into a single outlet at once. The major benefit of this rotating surge protector is that its inputs can spin in a full circle, accommodating bulky plugs that don’t work on regular strip-style protectors. These tools are also designed to … Read more
When shopping for an aerobics microphone, search for sweat-proof microphones that will fit comfortably on your head or around your neck while simultaneously giving good sound quality. A microphone with an adjustable mouthpiece is a good idea, but be sure that the microphone is not too obtrusive in the position that you are most likely … Read more
Printed circuit board repairs often are difficult and tedious, but the difficulty can be mitigated by employing a few simple tips. There often are scratches on older printed circuit boards, but using a magnifying glass and good light source can make it much easier to find and repair these scratches. Before starting printed circuit board … Read more
A light-emitting diode (LED) bulb is a small, intense lightbulb about the size of a match head. An LED lightbulb uses semiconductor technology to replace traditional filament-style lighting. The bulbs’ design allows for maximum brightness and interchangeability with traditional lightbulb styles. The bulbs themselves have many energy and longevity benefits that other forms of lightbulbs … Read more
Wireless headphones can allow you to listen to your television at home without disturbing others, or free you from cord tangles when you take your music on the go. Determining the best set of wireless headphones will typically depend where you want to use them, though you may also want to look at other factors … Read more
A home stereo system can be used to listen to music, and it can be hooked into a television to provide stereo sound during movies and TV programs. Those who want to attach the speakers to a television or DVD player to create a home theater will probably want to look into surround sound systems … Read more
Mobile ham radio is the practice of amateur enthusiasts engaging in two-way radio communications. It usually uses low-powered broadcasting over shortwave frequencies. There is a long-established community of ham radio users, complete with customs and traditions. Most countries specifically allocate frequencies for use by ham radio. In most countries, a license is needed to use … Read more
Cell phone accessories are additions to your cell phone that usually serve a helpful purpose. Some people decorate their cell phones with accessories, but most are used for a specific purpose. There is a huge market for cell phone accessories today. One of the most popular cell phone accessories is an additional charger. Purchasing an … Read more