Customer Rating: 
Summary: Well Built plastic thing
Comment: The Koss VC20 has a good feel to it. The actual volume knob itself feels like it is solid. I guess I could put it this way---you know how some things feel cheap and plasticy, well this is a plastic thing but does not feel cheap somehow.
Customer Rating:
Summary: Works As It Should
Comment: The product works as advertized. The adjustment wheel is fine enough that the volume can be tuned in very precisely. The wheel is recessed below the side surface of the body to avoid accidentally adjusting the volume and protect the wheel from damage. The cord is perhaps thinner than I would have expected but should be ok. The body of the device is very light plastic but seems rugged enough. If the product proves to be durable I will change my rating to a 5.
Customer Rating:
Summary: A solution to a problem
Comment: This year I bought a Dell Vostro laptop. It turns out that many/all have a problem with the audio in that there is a buzzing sound and noise especially when using earbud headphones. Someone suggested using a volume control to increase the impedence. I didn't expect it to work but it does. The Koss VC20 reduced the problem to the point where it is barely perceptable. I am completely satisfied.
Customer Rating:
Summary: A must have for PPC/smart phone devices
Comment: Great item if you are interested in volume control with out dealing with the interface all the time (PPC)
Customer Rating:
Summary: Convenience at your fingertips
Comment: This little gadget sure makes volume control a whole lot easier. No more fumbling with buttons on my mp3 player or the pesky control wheel on my iPod. The clip makes it even more convenient when I can just attach the controller to my computer keyboard tray. It sits there at my left hand and I can adjust the volume to my heart's delight. The extra cord length is also a bonus. Great value for the money.
Summary: Well Built plastic thing
Comment: The Koss VC20 has a good feel to it. The actual volume knob itself feels like it is solid. I guess I could put it this way---you know how some things feel cheap and plasticy, well this is a plastic thing but does not feel cheap somehow.
Customer Rating:
Summary: Works As It Should
Comment: The product works as advertized. The adjustment wheel is fine enough that the volume can be tuned in very precisely. The wheel is recessed below the side surface of the body to avoid accidentally adjusting the volume and protect the wheel from damage. The cord is perhaps thinner than I would have expected but should be ok. The body of the device is very light plastic but seems rugged enough. If the product proves to be durable I will change my rating to a 5.
Customer Rating:
Summary: A solution to a problem
Comment: This year I bought a Dell Vostro laptop. It turns out that many/all have a problem with the audio in that there is a buzzing sound and noise especially when using earbud headphones. Someone suggested using a volume control to increase the impedence. I didn't expect it to work but it does. The Koss VC20 reduced the problem to the point where it is barely perceptable. I am completely satisfied.
Customer Rating:
Summary: A must have for PPC/smart phone devices
Comment: Great item if you are interested in volume control with out dealing with the interface all the time (PPC)
Customer Rating:
Summary: Convenience at your fingertips
Comment: This little gadget sure makes volume control a whole lot easier. No more fumbling with buttons on my mp3 player or the pesky control wheel on my iPod. The clip makes it even more convenient when I can just attach the controller to my computer keyboard tray. It sits there at my left hand and I can adjust the volume to my heart's delight. The extra cord length is also a bonus. Great value for the money.