Unbeatable Price! Includes Calmlink Biofeedback Software for Windows, or Calmlink, and the GSR2 unit. Learn to reduce stress by controlling graphic animations, listening to the music tones or even playing Pacman game! System Requirements: - Microsoft Windows(tm) 98/98SE, ME, NT, 2000 or XP (Vista is not supported). - A SoundBlaster(tm) compatible sound card. The GSR2 connects to a computer sound card a "Microphone In" input via an optically isolated cable (supplied with software). - A CD-ROM drive for software installation. - Pentium 1.1 GHz or higher processor is recommended. This items includes a GSR2 unit, a CD-ROM disk, a GSR2/PC optically isolated cable and installation instructions. The software manual is inlcuded on the CD-ROM disk. Please visit Calmlink.com for more information. BiofeedbackZone.com Lowest Price Guarantee: If you find a lower price on this product from a reputable seller within 30 days form the purchase, we will give you 110% difference in price. Availability: Usually ships the next business day. GSR2 + Calmlink Biofeedback System GSR2CALMLINKRetail price: $159.00Sale price: $129.99 BiofeedbackZone.com is powered by Web Ideas International Inc., 4335 Pheasant Ridge Drive NE, Suite 224-110, Blaine MN 55449. E-mail: support@biofeedbackzone.com Tel: (651)494-3977 Fax: (484) 952-1227