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Manual Plantronics Discovery 640E Headset

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Manual

UK PoWEring on anD oFF

1. Power on the headset by pressing and

holding the call control button until the

headset status indicator glows blue. If you

are wearing the headset, you will hear a

beep when the power turns on. The headset

status indicator will ﬂash blue every 6

seconds when the headset power is on.

NOTE When the headset is turned on, the

headset status indicator will indicate the

charge level of the headset.

Greater than 2/3 battery charge =

3 red ﬂashes.

1/3 to 2/3 battery charge =

2 red ﬂashes.

Less than 1/3 battery charge =

1 red ﬂash.

2. Power off the headset by pressing the call

control button for 6-8 seconds until the

headset status indicator glows red or until you

hear the beep. The headset status indicator

remains unlit when the power is off.

Fr MisE soUs tEnsion/Hors

tEnsion

1. Pour mettre le micro-casque sous tension,

maintenez enfoncé le bouton de contrôle

des appels jusqu’à ce que le voyant s’allume

en bleu. Si vous portez le micro-casque,

vous entendez une tonalité lorsque le

micro-casque s’allume. Le voyant d’état du

micro-casque clignote en bleu toutes les 6

secondes lorsque le micro-casque est sous

tension.

REMARQUE : Lorsque le micro-casque

est mis sous tension, le voyant d’état du

micro-casque indique le niveau de charge

du micro-casque.

Charge supérieure aux deux tiers de la

capacité =

Clignote 3 fois en rouge

Charge comprise entre le tiers et les deux

tiers de la capacité =

Clignote 2 fois en rouge

Charge inférieure aux deux tiers de la

capacité =

Clignote 1 fois en rouge

2. Pour mettre le micro-casque hors tension,

maintenez enfoncé le bouton de contrôle

des appels pendant 6 à 8 secondes, jusqu’à

ce que le voyant du micro-casque s’allume

en rouge ou que vous entendiez un signal

sonore. Le voyant d’état du micro-casque

demeure éteint lorsqu’il est hors tension.

”BEEP”

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Specifications

Brand	Plantronics
Model	Discovery 640E
Category	Headsets
File type	PDF
File size	1.77 MB

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Frequently Asked Questions about Plantronics Discovery 640E Headset

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

Does bluetooth work through walls and ceilings? Verified

A bluetooth signal will work through walls and ceiling, unless these are made from metal. Depending on the thickness and the material of the wall the signal can lose in strength.

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When I connect a headset to my device it doesn't work properly, what can I do? Verified

It is possible that dirt has amassed in the opening where the headset is connected, preventing it from making proper contact. The best way to clean this is with compressed air. When in doubt, have this done by a professional.

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Can I wrap the cord around the device after use? Verified

It's better not to do this, because it can damage the cord. The best thing to do is wrap the cord the way it was when the product was packaged.

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When is my music too loud? Verified

Sounds over 80 decibel (dB) can start to damage hearing. Sounds over 120 dB immediately damage hearing. The severity of the damage depens on how often and how long the sound is present.

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What is Noise Cancelling? Verified

Noise Canceling is a technique that is mainly used in headphones. Active noise control is used to lower or eliminate the influence of ambient noise.

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Up to what noise level is it safe for children? Verified

Children get their hearing damaged quicker than adults. Therefore it is important to never expose children to noise louder than 85dB. In the case of headphones there are special models for children. In case of speakers or other situations you have to be watchful the noise does not exceed that level.

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