Description AVer VBC342 Expansion Microphone Expansion microphone for the AVer VB342 video conference system. Buy with confidence! The VideoConference Store has been delighting our customers for over 18 years. As a video and voice conferencing expert, The VideoConference Store can design and deliver a solution that integrates with your existing investments, aligns with your business requirements, and fits within your budget. Please chat below, email, or call 1-888-821-7767 with any questions!