The Mobile Phone Saving Network

clarity power technology increases the volume of high frequency sounds, the kind of sounds many people can't hear clearly on the phone
hear every word up to 3 times louder
ideal for mobile professionals who hold conversations in noisy environments
voice/sound activated - turns on/off automatically
works with most mobile, cordless and cellular phones

Reviews:

Great idea poorly executed

Rating: 2

Overall packaging and funtion good but the automatic on/off function does function effectively. The result is that it turns itself off frequently during a call cutting off the speaker for a second or two. Unfortunately, there is no way to override the switch or to change the sensitivity or threshhold level.

A much needed item that I cannot use due to this flaw. It's a shame Plantronics products are usually quite good.

Headset Amplifier Works Great!	Rating: 5
I'm half deaf and this is a plus! I'm real happy I can hear better than ever before on my home telephone, cellular phone. Plantronics made a wonderful product that could help anyone with excess background noise as well.

Would be 5 stars except.....

Rating: 4

Like others have said, it doesn't have a manual on/off. Occasionally, when in a call if it gets really quiet, the amplifier will turn off so I have a tendancey to blow lightly in the mic while waiting... just because it's unnerving to hear the line sound like it went dead. Other than that, it really works well. It has more than enough volume for me, and it gives my headset cord that little extra lenght I need.

By Plantronics