Poly HW710 Headset Wired Head-band Office/Call center Black

Weight: 53 g Headset type: Monaural Sound pressure level (max): 118 dB Recommended usage: Office/Call center Product colour: Black Wearing style: Head-band Product type: Headset Quantity: 1 Connectivity technology: Wired QD connector: Yes Harmonized System (HS) code: 85183000 Microphone frequency: 100 - 6800 Hz Microphone sensitivity: -39 dB Microphone noise-canceling: Yes Microphone type: Boom Microphone input impedance: 150 O Impedance: 125 O Headphone sensitivity: 17 dB Acoustic system: Closed Headphone frequency: 150 - 6800 Hz