Plantronics 640

The Plantronics Discovery 640 is a Bluetooth wireless headset manufactured by Plantronics. The Plantronics headset gives fifteen hours of talk time with innovative AAA pocket battery charger. Apart from the pocket charger, the instrument has three types of chargers: a normal battery charger, A/C adapter, and the car charger. The speakers are covered with a spongy cloth that prevents the ears from damage. The effect of the spongy cloth is similar to the average stereo ear buds. The headset can be adjusted by swiveling the arm of the Plantronics 640. The user can fold the headset for easier storage when it is not in use. The device is very light and weighs only 9 grams, hence the presence of the device is not felt in pocket or when it is on the ear. To ensure that the voice is received with clarity by the listener, the boom arm of the headset is extended. There are various buttons integrated in the headset to manage different tasks. The headset features volume button with which one can control the volume of the incoming and out going voice. Also if the user is listening to music, he can control the volume with this button. The next button that is integrated with the Plantronics 640 is the call receive button. This button helps in receiving the calls, hanging them up, redialing, etc. The power button of the headset allows switching the headset on and off. The Plantronics Discovery has a good sound quality and allows noise-free conversations at both the ends. The headset vibrates when there is an incoming call.