Sennheiser PC 7 USB Headset Wired Headband Office/Call Centre USB Type-A Black

Warranty period: 2 year(s) Storage temperature (T-T): -35 - 65 °C Operating temperature (T-T): 0 - 40 °C Weight: 62 g Width: 140 mm Height: 160 mm Depth: 50 mm Recommended usage: Office/Call center Cable length: 2 m Product colour: Black Cable colour: Black Headset type: Monaural Wearing style: Head-band Product type: Headset Package depth: 251 mm Package weight: 173 g Package height: 220 mm Ear pad size: 5 cm USB connectivity: Yes Connectivity technology: Wired USB connector: USB Type-A Rechargeable battery: No Shipping (inner) case length: 8 cm Master (outer) case length: 520 mm Products per master (outer) case: 20 pc(s) Harmonized System (HS) code: 8518300090 Master (outer) case packaging type: Carton Microphone direction type: Unidirectional Microphone sensitivity: -40 dB Microphone frequency: 90 - 15000 Hz Microphone input impedance: 2200 Ω Microphone type: Boom Microphone noise-canceling: Yes Warnings: Read the user manual before use. Headphone sensitivity: 95 dB Impedance: 32 Ω Headphone frequency: 42 - 17000 Hz Acoustic system: Closed Driver type: Dynamic Noise canceling: Yes