High pitched squeel

Feedback is a sharp, loud noise that can come through the earphones of a headset unexpectedly---it occurs when the headset is getting sound (feed) from someone else speaking or playing music into a microphone. This sound can create a dangerous situation for someone who is operating expensive equipment or flying a plane at the time since it can disable hearing temporarily.
If you experience feedback often, it could also lead to serious hearing problems.

Mic Too Close to the Speaker or Volume Too High
The main cause of a feedback sound in a headset is proximity to a speaker. If a person holding a microphone on the other end gets too close to a speaker, it creates a loop of re-amplified sound that results in the loud, screeching noise. When the volume on the other party's microphone is too high, it is more vulnerable to picking up unwanted noise and feedback from speakers and sound output devices in the room. So make sure that you ask the other party to turn down the microphone to a normal level and stay far from speakers. b> Two Microphones Gathering Same Sound b> When the other party places two microphones too close to each other, it could cause feedback. When positioned toward the sound source (such as a person speaking) the microphones will both pick up the same audio and compete with each other when creating the output of sound, causing a sharp noise in your headset. This problem, called acoustic phase interference, is resolved by simply ensuring that the other party uses one microphone at a time. Poor-Quality Headset or Microphone b> One common cause of feedback is simply a poor-quality headset or microphone. Most modern headsets and microphones have noise-canceling features that manage and kill feedback before it has a chance to occur. These noise-canceling headsets are essential for pilots and aviation crew members. If you hear sudden feedback that is strong enough to hurt your ears, the headset or microphone is simply not properly equipped to actively cancel that unwanted noise before it hits your ears. Buy a higher-quality noise-canceling headset to manage the feedback noise when you're going about your tasks. Hope this helps.

I had the same problem. I was using Energizer Rechargeable batteries that were fully charged and the same thing was happening to me. I took out the batteries and switched them for the ones that originally came with the headphones and they were working perfectly fine. For some reason they don't like Energizer Rechargeable batteries. I haven't found another brand that works yet, but I hope this helps.

Ascertain that the device would have been over loaded with messages displaying an indication. delete extraneous recorded messages for revieve regualar functionalilty. Reffer from user guide to ascertain alternate digonstics.

Same issue here. Can hear the high pitch buzz, and friends complain about it.

I have 2 Turtle Beach X11 headsets, and 3 Xboxes (std, Elite, slim)

Unplug the mic, and no high pitch buzz. Plug it back in, and its back.

Tried all 3 boxes experience same issues

Playing with volume and mic settings doesn't make a difference.

Would love to have a fix for this :-)

we call it the fan belt,it is loose enough to cause it to slip(squeel)whenn cold it just needs adjusting.(the 1/2 inch wide belt that drives the alternator).

when someone calling keep plugged in your headset sometimes it will work

The design of these headphones includes a microphone on the outside and on the inside of each earcup. The outside microphone detects outside noise. The inside microphone monitors what you are hearing and when it detects that the outside noise is present inside, the active noise-canceling circuits remove that noise. This happens fast enough that you perceive a siginficant reduction in the outside noise getting to your ears.

The airspace inside the earcup is a tuned chamber defined by the foam in the ear cushion. This is important because with the inside microphone in close proximity, but at a 90-degree angle to the speaker, the circuit must be designed to eliminate the normal feedback that occurs. When you press the earcup close to your ear, you are changing the size and shape of the air chamber inside of the earcup thus directing more of the speaker sound toward the microphone than the design can compensate for causing audio feedback to occur. You are hearing that feedback. Removing your hand from the earcup should restore the shape of the air chamber allowing the circuits to return to normal operation.

If the feedback occurs too easily when you are NOT pressing on the earcup, then the foam may have weakened/deteriorated and it may be time to replace the ear cushion.

On my QC-3 headphones, I can cause the feedback squeal in both earcups, with the left earcup being more sensitive to the shape change than the right.

Okay for starters, you need to check to see if that fax machine is automatically answering the phone when it rings. you can check to see if it is trying to recieve by call that phone number from another phone and listen if it answers and when it does, does it make a high pitched squelling sound that varies in pitch.
if it does then it should be working ok, if not then you must program your recieve mode to automatically answer.
you can also check to see if it's sending by doing the opposite: put a sheet of paper in the machine to fax and dial your cell phone or other number, when it rings pick it up and listen for the high pitch squeel, if it works then your fax is working properly.

Thank You,

Mikey

for nokia e65 operations visit the user guide in this website :
http://nds1.nokia.com/phones/files/guides/Nokia_E65-1_UG_en.pdf







Feature： Its earbud design fits comfortably in your ear - wear it with or without the earloop. Answer and end calls, redial numbers, activate voice dialing, and switch modes - all using just one button. :The stylish look of the Nokia Bluetooth Headset BH-901 reflects its high quality and innovative design approach. Delicately simple, it connects to your phone via Bluetooth wireless technology. The headset is comfortable to wear on either ear, with or without the convenient ear loop.

Controls various calling features with the push of a button.
Additional functions: Call receiving; last call dialing, volume up/down, mute/hold function.

Call the Jabra Support hot line they will send you replacement earhooks free

Takes less then 5 mins to get them sent