Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Practically unusable

This headset only works well in a very quiet area. Any noise at all like driving and it is useless you cannot hear the other person well enough for even basic communication.Our telecom manager ordered some of these and all were exactly the same...unusable.Do not get this headset if you plan on going out side of a sound proof room...Very bad design.Do not listen to the 5 star ratings...they have to be Motorola planted posts.