8?

• 
  Amplifiers
• 
  AV Furniture
• 
  AV over IP (Networked AV)
• 
  Cables, Accessories and AV Tools
• 
  Video Cameras
• 
  MTR Conferencing and Collaboration
• 
  Control, Management, and Monitoring
• 
  DSP, Audio Matrices and Mixers
• 
  Digital and Presentation Switchers
• 
  Document Cameras
• 
  User Interfaces
• 
  Speakers
• 
  Microphones
• 
  Mounts and Brackets
• 
  Projection Screens
• 
  Interactive Panels