Encore Pro HW520

Description

• The new design is lighter than previous models, offering users improved comfort
• Next-generation custom microphone reduces background noise and interference, ensuring fewer
missed words and a better caller experience
• Tactile and visual guidance so the user can feel and hear ratchet clicks when the boom is moved
into the proper range for optimum mic positioning
• Wideband audio that delivers richer, clearer conversations while SoundGuard technology protects
user from noise spikes and listening fatigue
• Metal integrated into the core design, not cosmetically, while the unibody flexible boom means
there is nothing to break off
• The laser-welded construction creates more robust joints between the earpieces and the
headband for maximum robustness
• Quick Disconnect feature provides walkaway convenience and compatibility with all Plantronics
USB and deskphone audio processors and direct connect cables

Connects to PC or deskphone with Plantronics audio processors
Ideal for Telephone-intensive users, including formal customer care centres
and helpdesks
Audio performance Wideband audio (up to 6,800 Hz), noise-cancelling microphone
Transmit Characteristics (typical)
Sensitivity @ 1kHz: -39 ± 3 dBV/Pa
Frequency Range: 150 to 6800Hz
Output Impedance: < 150Ω
Typical Test Conditions: 1.8VDC, 3.3KΩ DC Resis, 3.3KΩ AC Load
Receive Characteristics (typical)
Sensitivity @ 1kHz: 20 dBPa/V (Monaural) 14 dBPa/V (Binaural)
Frequency Range: 100 to 6800Hz
Acoustic Limit: <24dBPa (<118SPL)
Input Impedance: 160Ω ± 25% (Monaural) 320Ω ± 25% (Binaural)
Typical Test Conditions: 100mV Drive, 10Ω Source Impedance. Measured on ITU-T Type
3.3 artificial ear, Ear Reference Point