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Showing posts with label gadget. Show all posts
Showing posts with label gadget. Show all posts

Tuesday, April 13, 2010

cool headsets






Gbex says:A headset is a headphone combined with a microphone. Headsets provide the equivalent functionality of a telephone handset with hands-free operation. Headsets typically have only one speaker like a telephone, but also come with speakers for both ears.

They have many uses including in call centers and other telephone-intensive jobs and for personal use at the computer to facilitate comfortable simultaneous conversation and typing

Headsets can come in single-earpiece and double-earpiece designs. Single-earpiece headsets are known as monaural headsets. However, double-earpiece headsets come in both stereo type (two channels of audio signal, one for each earpiece) or binaural type (the same audio channel for both ear-pieces).

Professional users may choose to wear monaural headsets because they free up one ear, so they can be more conscious of their work surroundings. Telephone headsets come in only monaural type for double-earpiece designs because telephone offers only single-channel input and output, so all double-earpiece telephone headsets are binaural.

However, for computer or other audio applications, where the sources offer two-channel output, stereo headsets are the norm. Telephone headsets generally use 150-ohm loudspeakers with a narrower frequency range, so sound outside the voice band is less audible to reduce background noise.

Stereo computer headsets, on the other hand, use 32-ohm loudspeakers which have a much broader frequency range, and is more suitable of music listening .

Friday, February 12, 2010

Wi-Fi detector

Ellen Says: Wi-Fi detectors became very popular nowadays. Many devices already have Wi-Fi capabilities and number of free hot spots increase every day. There are so many variations of detectors; it is hard to mention all of them. Detector pens, t-shirts, glasses... Unfortunately, they are not connected somehow with Wi-Fi device, simply forget to take the detector while seeking hot spot with laptop or PDA. Detector must have a needed usage so it will not be forgotten at home...


Lucky I am I have this kind of laptop bags, which will help me to detect free hotspots and know the level of Wi-Fi signal without having to take my laptop out of case. It is a very bright idea, because almost every laptop has Wi-Fi capabilities, so keeping it in this kind of case has two advantages: first -my laptop is easily transported and safe while it is in the case, second - this bag will tell you when Wi-Fi signal is detected, so I can take out my laptop and get online.


This is a good example of good and useful combination of useful and needed functions. I will always know whether the area has Wi-Fi signal or not, without taking out my laptop. So when I find a Wi-Fi signal, laptop I will always near to quickly connect to the Internet.


Thank to my hubby for his wonderful thought of giving this laptopbag to me.

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