LifeSize Phone 2nd Generation LFZ-021

System Speaker

• Powerful rare-earth magnet loudspeaker driver
• Large, acoustically suspended speaker enclosure
• Frequency response: 90 Hz to 22 kHz (Icons), for deep voice reproduction plus high intelligibility without hiss.
• Volume adjustable to 90 dB SPL at ½ meter peak
• Distortion at -10 dBmO
  <3% 100 Hz—200 Hz,
  <0.5% 250 Hz—20,000 Hz 
• Spectral peak limiting prevents speaker clipping without distortion

System Microphones

• Four orthogonally placed low-noise microphones
  (80 dB SNR before noise reduction)
• Beam-forming algorithm steers the microphones to the location of the talker for greater voice pickup and reduced room noise
• Voice pickup range up to 4.5 m (15 ft)

Advanced Audio Features 

• Acoustic echo cancellation
• Microphone background noise suppression
• VAD (Voice activity detector)
• AGC (Microphone automatic gain control)
• Adaptive jitter buffers and packet-loss concealment 
• Pro-audio 48 kHz sampling rate

Touchscreen Display

• Capacitive multitouch display
• Size: 5.0 inch (diagonal)
• Contrast: 500:1 (typical)
• Max brightness: 400 cd/m² (typical)

Connectivity

• VoIP connectivity and video systems integration in one device
• Lifesize Link connection to Lifesize Icon for power and signaling
• 3 high speed digital Lifesize Link connectors to support up to two Lifesize Digital MicPods³ in addition to the codec connection

No Mobile Device Interference

• Designed to reduce or eliminate audible radio frequency interference when mobile devices are placed adjacent to Lifesize Phone HD

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