The MXL AC-400 is a high quality gooseneck microphone designed to provide the highest level of intelligibility, even with the most demanding conferencing applications. The AC-400 is designed to work as a standalone mic, but can also be used with up to three optional AC-40EXT units. This gives each participant their own microphone with individual mute switches, enabling complete control of the communication within the conference. Featuring solid metal construction and a 15-inch fully flexible gooseneck, the MXL AC-400 makes conferencing situations simple, yet elegant. FROM THE MANUFACTURER The MXL AC-400 is a personal USB web conferencing microphone that is perfect for conference calls involving multiple people. The AC-400 facilitates clear, intelligible communication over the internet from a desktop or laptop computer in any workspace. Because it is a personal mic, the AC-400 records only the speaker and not surrounding sounds. With the outstanding voice clarity, it will sound almost as if you are speaking face to face with someone in another building, another state, or another country. Use the AC-400 with web conferencing software, voice recognition software and dictation software. The durable, all-metal construction of this microphone makes it suitable for any office environment. The AC-400 features a headphone jack and a mute button. The MXL AC400 works well by itself or it can be used with up to three optional AC-40EXT mics to include more people in the conversation. SPECIFICATIONS Type USB Gooseneck Microphone Power Supply USB powered Frequency Response 40Hz - 16kHz Sampling Rate 44.1kHz - 48kHz USB compatibility USB 1.1 and 2.0 A/D Converter 16-bit Delta Sigma with THD+N - 0.01% Output 1/8" Headphone Jack/USB External Input 1/8" Extension Jack Switch Mute switch

Excellent for offices and conference rooms. Easy to connect up to three AC-40EXT mics. Individual mute button for private conversations. Flexible 15-Inch gooseneck that is easy to adjust. USB gooseneck mic for Web conferencing. Excellent for offices and conference rooms. Flexible 15'' gooseneck that's easy to adjust. USB gooseneck mic for Web conferencing.