ACM

Cyber Acoustics ACM-500R Multi User Stereo Headphones
$9.99
I paid only $13 for this headset through Amazon and was amazed at the sound which was clear and rich. I'm not a dyed in the wool audiophyle, so maybe those that pay $100 for a headset would disagree, but it sounds great to me. The headset has volume control knobs to adjust the volume if desired. It has a little slide switch to go from mono to stereo,but I think it was backwards because when on mono it sounded like stereo and visa versa, a small matter. The headset comes with a small jack that fits the tv, mp3 and computer and a larger jack that can be clicked over the smaller jack that fits my home stereo unit. Buy it, you won't be disappointed, especially for $13 and eligible for free shipping.

Scosche ACM-1W Aqua Marine Cover-Up Automatic Door (White)
$49.95
Scosche ACM-1W Aqua Marine Cover-Up - Automatic Door, White

Ezprorear Acm-518m3 Headset Microphone Mini XLR (3 Pin) Connector for Akg, Gemini,samson, Audix
$24.00
CM518 is a compact, lightweight headset with a noise canceling electret condenser, boom-mounted microphone. It's one of the answers to the rapidly increasing demand for affordable, trendy, and reliable headset microphones. It's intended used for vocal transmission applications requiring hands-free operation, maximum mobility, and high-quality voice pick up.

Communications of the Acm
$209.00
Communications of the ACM is the premier magazine of the computing field. Each month it provides late-breaking industry news covering both established and emerging areas of computer technology. It also offers columns that focus on current industry concerns and issues.