Connections

• UBS interface (mini B connector)
• 3.5mm external loudspeaker and microphone jack
• Volume Up / Volume Down buttons
• Daisy chain expandability of up to 15 units
• Power consumption: 5V 500mA peak through USB and wall mount
• AC/DC converted

Audio

• Frequency response 50Hz – 16KHz
• Low latency (10ms)
• Broadcast level (peak): 92dB SPL @1m (5 watts RMS)
• Noise cancellation > 10dB (without pumping noise)
• 100% full duplex – no attenuation (in either direction) during full duplex
• High-end performance confirms to ITU-T G.167
• Acoustic echo cancellation > 40dB with conversion speed of 40dB/sec
• Residual echo is suppressed to the environment noise level, preventing artificial ducking of signal 4 high-quality directional microphones Direction-finding algorithm (determines the presence and direction of a speaker)
• Beamforming algorithm (forms and directs audio beams towards a defined direction)
• Automatic voice-level adjustment (AGC)

Dimensions

• Dimension: 7 in diameter
• Height:1-7/8 in
• Weight: 1.75 lbs
• Metal case and metal grill mesh for high RFI immunity and product durability

Software

• Plug-and-Play - No installation or drivers
• Audio Setup Utility is available for Windows
• The Setup Utility helps monitor the audio input and output level but is not required
• Recording Utility is available for Windows
• Recording Utility allows you to record conversations to your computer via the device
• Operating systems: Windows 98 and up / Linux / MacOS

Regulatory Compliance

• Complies with FCC 47 CFR Part 68, and ACTA adopted technical criteria: TIA-968-A
• Complies with FCC 47CFR part 15; ICES-003: 2004 Issue 4, Class B; AS/NZS CISPR 22: 2006, Class B; EN 55022: 1998+A1(00)+A2(03), Class B;, EN61000-3-2: 2000+A2(05); EN61000-3-3: 1995+A2(05); EN55024: 1998+A1(01)+A2(03)
• Complies with ETSI EG 201 121 V1.1.3 (2000-02); ETSI ES 203, 021-2 V2.1.2 (2006-01); ETSI ES, 203 021-3 V2.1.2 (2006-01)
• Conforms to the requirement of the European Union Directive 2002/95EC (RoHS Directive)