| Price : | Post Date : Dec 25, 2011 14:33:19Box has been opened but items inside are NEW. Everything inside the box. Includes: Wireless Headset, Headset Headband, Base/Charging Cradle, Power Adapter, 4 Interchangeable Ear Fitter, Spare Earmuff, Start Guide and Original Box.
What Is The Best Price For Twin Inflatable Bed Promo Surge Protector For Appliances Comparison Home Protector
The mystery or our hearing is not so mysterious when you understand how it works. Our ears pick up sound waves from everything around us. As we walk through life - sound waves are everywhere - in the air. Every time the phone rings or a dog barks; when you play the radio - these are sounds. All around us, every minute of the day we are bombarded with sound.
In scientific terms, sounds are measured as frequencies and amplitudes. All the sounds we hear are a mix of frequencies and amplitudes.
Sound waves travel through air, they are invisible to the eye but they affect the atmospheric pressure in the background many times per second. This is called a Hertz and each one represents one wave cycle per second. If our hearing is perfect, the human ear's hearing ranges from 20 Hz to 20,000 Hz. As you move away from the sound, the pressure drops roughly in proportion to the distance you move.
Amplitude measures the height and depth of a sound wave. Amplitude, or loudness, is measured in decibels and we can hear over a range amplitudes. As the height and depth rises and falls, the sound wave varies to increase or decrease the volume.
How do our Ears Hear?
Human ears are very complex. The outer ear collects sound waves and sends them down the ear canal to set the eardrum in motion. In turn, the vibrations travel to the spiral shaped cochlea which is filled with fluid and minute hairs. When sounds waves hit the hairs, nerve endings spring into action to send impulses to the brain which turns the sound waves into the sounds we hear.
If we are exposed to loud constant noise, the hair cells may be damaged - temporarily or permanently. Something like a gunshot or a car backfire can cause instant hearing loss. Look after your Hearing
Make looking after your hearing a habit. Use earplugs when working with loud machinery. Stay away from high pitched engines and noisy construction equipment. When listening to music, keep the sound at a reasonable level, whether you use headsets or not.
When you use a headset, don't listen for long with the volume turned up too loud. The louder the music, and longer you listen, the more likely your hearing may be affected. When changing your headset from device to device, you may find the sound level vary, but if it ever causes you discomfort stop using the headset immediately. The following are a few basic guidelines to help you protect your hearing:
Turn the volume down before putting your headset on. Don't listen to loud music for extended periods of time through your headset. Try not to turn up the volume to block out background noise in your environment. Keep the volume low enough so you can hear people around you talking.
Go to Plantronics Headsets to see the whole line of headsets available.
Hitch Mount Bike Rack Save You Money! Coupon Bumbleride Indie
Plantronics headsets are very useful for home users or companies today. They deliver superior sound and comfort.
Headsets can offer "hands free" use in combination with mobile phones. A wonderful solution for some users is their Bluetooth headsets. Bluetooth is a protocol which allows headsets to connect wirelessly to any Bluetooth-enabled phone. You are not tethered with a wire to your phone. You simply don the headset and go about your business. It can make talking on your phone much easier. In fact, some states now require the use of a hands free device if you are driving.
Now that you are thinking of buying a Plantronics headset, consider whether you would like your headset to be monaural, binaural, or stereo. Each has advantages and useful features. A monaural headset has only one ear-piece and is normally used in an office environment or with a phone. A binaural headset, on the other hand, has two ear-pieces outputting the same audio channel. This type of headset is useful if the user works in a noisy environment such as a call center. The stereo type of headset has two ear-pieces as well, like the binaural. The difference is that each ear-piece has a different audio channel. This type of headset is best for listening to music on your home computer.
An additional style option for your Plantronics headset purchase is whether you like the headset to be over your ear or over your head. You must remember that dual ear-piece are always designed over the head to give optimum sound quality. Over the ear design, on the other hand, is best when you are driving though you can listen to music albeit not as well.
You can also select a headset with noise cancelling. Noise cancelling headsets help to eliminate background noise which can work well in a noisy work environment or an airplane.
Whether you like wireless or do not mind being wired, you can find the right fit for you with a Plantronics headset. Wired headsets provide excellent sound quality while the wireless headset allows for you to multitask while talking on the phone.
You need to decide also where are you going to use your headset-whether it will be for your computer, telephone, or cell phone. You, however, could buy a headset which is multifunctional that you can use for all these three.
Cs55/hl10 bundle eol nov11/repl:84693-01
Backpack Leaf Blower Save You Money! Kleenex Free Samples Order
| Price : $177.15Plantronics CS-55PLT wireless headset delivers the ultimate in mobility and superior sound quality for hands-free conversations. The Plantronics CS-55PLT uses 1.9GHz voice-dedicated DECT 6.0 wireless technology for uncompromising sound and limits interference from wireless networks or appliances. Additionally, the CS-55PLT features a noise-canceling microphone that filters out background noise. With the hands-free mobility of the wireless CS-55PLT, be in control with one-touch over call answer/end, volume, and mute up to a 300' range and 10 full hours of talk time. The Plantronics CS-55PLT is comfortable as well for any user, with included interchangeable ear loops or the over-the-head band. The CS-55PLT comes complete and ready to use with an AC charger and base station for charging.
Tumi Alpha Backpack Free Shipping Promotions Best Price On Dyson
|
|
|
|
 |
 |
 |
 |
 |
 |
 |
 |
