Plantronics HW540

Plantronics EncorePro HW540, Monaural Headset, Noise-CancellingNástupce modelů Plantronics DuoSet H141N/A a DuoPro H171N/AOVERVIEW■ Choice of three comfortable and easily switchable wearing styles - over-the-ear, over-the-head or behind-the-neck - offers more flexibility from a single headset to suit a wider range of user preferences■ The new design is extremely light, offering users a more discrete headset and improved comfort for longer calls■ Soft, luxurious ear cushions for excellent audio quality, while providing all day comfort■ Visible guidance so the user can see when the boom is moved into the proper range for optimum microphone positioning■ Higher-quality wideband audio meets official TIA920A standards and noise-cancelling microphone help raise the standard of phone conversations■ Quick Disconnect supports multiple connectivities from USB, audio processor or Direct Connect and allows users to easily move away from their workspaces without removing their headsetsSPECIFICATIONSConnects to■ PC or deskphone with Plantronics audio processorsIdeal for■ Telephone intensive users, informal contact centres (e.g. helpdesks)and enterprise/office telephony usersType■ MonauralAudio performance■ Wideband audio (up to 6,800 Hz), noise-cancelling microphoneTRANSMIT CHARACTERISTICS (TYPICAL)Sensitivity @ 1kHz■ -39 ± 3 dBV/PaFrequency Range■ 150 to 6800HzOutput Impedance:■ < 150 ΩTypical Test Conditions■ 1.8VDC, 3.3K Ω DC Resis, 3.3K Ω AC LoadTRANSMIT CHARACTERISTICS (TYPICAL)Frequency Range■ 100 to 6800HzAcoustic Limit■.