The Duet PCS Fetures:

Size: 3.75 in x 1.25 in x 4.5 in (W x H x D), Weight: 0.55 lbs (with USB cable)

USB power for PC and Laptop (LED will illuminate)

100% Full duplex performance – No attenuation (either way) during full duplex

Acoustic echo cancellation >40 dB

High-end performance: Conforms to ITU-T G.167 Standard

Noise cancellation >10dB

Residual echo is suppressed to the Environment Noise Level to Prevent Artificial Ducking of Signal

Voice level equalization

Convergence speed 40 dB/sec

Tail length (200ms)

Convergence during full duplex (no recovery time after full duplex)

Low delay (10 msec)

Bandwidth 20Hz – 16kHz for Speech Processing Maintains the Soundcard bandwidth

Integrated loudspeaker

Mute button and loudspeaker volume control buttons (LED will blink in mute mode)

Speech processing and echo suppression at 32KHz sampling rate

HD speaker audio (16KHz bandwidth)

Connectivity:
USB connector – PC or Laptop connectivity
3.5mm connection for external loudspeakers or headphone