Instruct: Classify a given review as either positive or negative.
Query: Very loud humm using amplifier, annyoing humm using just headset

I've tested this by calling at least 4 different people -- After a great deal of messing with the boom I was able to keep from sounding like darth vader, but everyone complained of an annoying humm that bothers the person I'm talking too. It does so if connected to the amp or directly to my computer. I've not had these problems with my other labtec headset.I could deal with this (ie replace the headset) but there is a very loud humm using amplifier even at the lowest volume, and at high volume it is too painful to leave on. I tried using the amplifier plugged in and with batteries. I tried it with the headset it came with and my other headset which I know is good. I tried it on two computers.Any way I try this setup and parts, they just don't work well enough to use and am trying to return them.