Poly Plantronics EncorePro HW520 QD Duo NC 89434-02 Headset

Poly Plantronics EncorePro HW520 QD Duo NC 89434-02 is the latest headset in the most popular line of professional headsets for call centers with a classic headband for two ears with enhanced noise reduction with a QD connector.

Poly Plantronics EncorePro HW520 QD Duo NC 89434-02 is the latest headset in the most popular line of professional headsets for call centers with a classic headband for two ears with enhanced noise reduction with a QD connector. New lightweight design with less weight and improved user comfort. Next generation microphone reduces background noise and interference, providing better voice transmission with clearer sound for the caller. Tactile and visual cues - the user can feel and hear the microphone moving when positioning for maximum comfort and optimal distance. Wideband audio provides rich, clear sound while SundGuard technology protects hearing from harsh sounds. Metal construction elements combined with flexible elements provide a secure and comfortable fit. The design is made using laser and aircraft aluminum technology, which ensures a reliable connection of the headband, earcups and other elements. The Quick Disconnect connector is fully compatible with all Plantronics adapters, USB adapters and audio processors.
Connection: PC, desktop analog, digital and IP phones, cordless handsets and mobile phones
Application: for intensive use in offices, call centers and help desks
Audio Features: Wideband audio (up to 6800Hz), noise-canceling microphone

Microphone specifications: Sensitivity at 1 kHz: -39 ± 3 dBV/PaFrequency range: 150 to 6800 HzOutput impedance: <150 Ω
Speaker Specifications: Sensitivity at 1 kHz: 20 dBPa/V (Monaural) 14 dBPa/V (Binaural) Frequency Response: 100 to 6800 Hz Acoustic Limit: <24 dBPa (<118 SPL) Input Impedance: 160 Ω ± 25% (Monaural) 320 Ω ± 25% (Binaural)