Early forms of holography and photography have a lot in common, as they are based on the same basic principles. Both holography and photography record images on chemically-treated film, often … Read More
A satellite phone is a type of communication device similar to a cell phone, but instead of sending signals to a land-based cell tower, the satellite phone sends signals to … Read More
Three-dimensional (3D) augmented reality is an application of technology in which cameras and displays are used to create virtual images within an actual scene. One of the most common ways … Read More
Access denial is a security tool used to limit access by persons who may be unauthorized. It uses an automated algorithm to determine if a user has permission to access … Read More
A receiver amplifier is a home theater component that performs the two basic functions of switching between different inputs, and amplifying audio signals before they are routed to loudspeakers. Receivers … Read More
Smart cards are cards with embedded chips that are used for security or for saving profiles, such as for worker identification badges or library cards. Smart card software is made … Read More
A field-effect transistor (FET) is a three-terminal device that can control the amount of electricity allowed to pass through. FET transistors are able to switch or control electricity very rapidly. … Read More
There are many different types of phone recorders, so you will need to take the specific application into account when trying to choose the best one. Phone recorders can be … Read More
Choosing the best VHS tapes often depends a great deal upon how you plan on using the tapes and the amount of video you want to record onto them. How … Read More
To choose the best walkie talkie set to suit your needs, you must take a few things into consideration. What you plan on using the walkie talkie set for and … Read More
Some digital camera accessories are things that everyone or nearly everyone needs. But beyond those, the best digital camera accessories for you are ones that work well with your particular … Read More
A Bluetooth earphone is a wireless earpiece that can be connected to a mobile phone, an mp3 player, a laptop or other Bluetooth-enabled device for hands-free use. Bluetooth earphones operate … Read More
Rock speakers are speakers with a facade designed to look like rocks, but which actually deliver audio, usually in an outdoor setting. While the speakers may cost a little more … Read More
An underwater digital camera is a digital camera which is designed to function underwater. It may take still or video photography or both, depending on the model. Such cameras tend … Read More
A 3G handset is one of the more recent technologies in the cell phone industry. Finding a good phone that is capable of meeting your demands should not be too … Read More
A weatherproof phone is a type of phone that has been designed to withstand environmental elements. Generally, it is sturdier and more functional than the average phone. The most common … Read More
Turntable mixers are electronic devices that combine audio signals from multiple sources for control through a single deck. These decks typically contain multiple channels, each equipped with controls such as … Read More
HD radio is a brand name, and it should not be confused with HDTV. It doesn’t refer to either high-definition radio or satellite radio. This type of radio broadcasting allows … Read More
There are many different types of cell phone gadgets, but the most popular are hands-free devices, cases, and phone skins. Many of these products can be found easily on the … Read More
Online voicemail records and stores phone messages on the Internet. Customers can set it up to work in a number of ways, possibly receiving free access with some products. This … Read More