Corded Headsets from kn
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Corded Headsets from KN
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KN 100620 Nienhaus vandalismusgeschü Metalltastatur Codierschaltgeräte
Diese vandalismusgeschützte Metalltastatur wird als Bedienteil zu den Codierschaltgeräten Versa 4 und Versa 50 eingesetzt. Der Rahmen besteht aus Alu-Druckguss und ist hellgrau pulverbeschichtet. Lieske Part No.: 2122758 Mfg Part No: 100620 |
131,12 EUR
 ≈ £112.37 | ≈ $153.15
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KN 100660 Nienhaus Transponder-Bedienelement hgrer
Dieses Transponder-Bedienelement wird als Bedienteil zu dem Codierschaltgerät Versa 50 eingesetzt. Im Gegensatz zu den üblichen Tastaturen reicht bei diesem Gerät ein einfaches Vorhalten einer ... Lieske Part No.: 2122759 Mfg Part No: 100660 |
131,12 EUR
≈ £112.37 | ≈ $153.15
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KN 140030 Nienhaus Master MercatoFunk 433MHz m.steckbarem A.k. 191W 30Nm
Der Funk-Rollladenantrieb Master Mercato Funk ist ein intelligenter, elektronischer Funk-Rohrmotor für Rollläden bis 7qm. Der Antrieb ist bidirektional, was besonders in Verbindung mit ... Lieske Part No.: 2122734 Mfg Part No: 140030 |
203,04 EUR
≈ £174.01 | ≈ $237.15
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KN 140060 Nienhaus Primus MercatoFunk-mini 433MHz 124W 9Nm 4U/min
Der Funk-Rollladenantrieb Primus Mercato Funk - Mini ist ein intelligenter, elektronischer Funk-Rohrmotor für Rollläden bis 2,8qm. Der Antrieb ist bidirektional, was besonders in Verbindung mit ... Lieske Part No.: 2122735 Mfg Part No: 140060 |
190,33 EUR
≈ £163.11 | ≈ $222.31
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Wired Headsets – Product Details & Advice
Wired headsets are the classic solution for call centres and high-frequency phone workstations: no battery problems, maximum reliability, often cheaper than wireless variants. QD connector (Quick Disconnect, 4P4C) enables quick detachment of the headset from the phone cable without tangling; various adapter options at the other end (RJ9, USB, 3.5 mm). USB headsets (USB-A or USB-C) operate directly on PC or laptop using the integrated USB audio driver; ideal for softphones (Cisco Jabber, Avaya Equinox, MS Teams). Mono headsets (single-sided) are standard for call centres; duo headsets (double-sided) reduce ambient noise better and are suitable for open-plan offices.
Wireless variants: Wireless Headsets. Spare parts and cables: Headset Spare Parts.
Frequently Asked Questions
▶ What is a QD connector and what adapters are available? QD (Quick Disconnect, 4P4C): standardised connector that separates the headset cable from the phone cable plug – easy detachment and connection. Adapters: QD to RJ9 (phone handset socket), QD to USB, QD to 3.5 mm, QD to RJ11. Jabra, Plantronics and EPOS use slightly different QD standards – not always cross-compatible. |
▶ How do I clean a headset hygienically in a multi-user environment? Leatherette or faux fur ear cushions can be wiped with 70% isopropyl alcohol wipes. Replaceable ear cushions (available separately as spare parts) should be changed every 1–3 months with regular user changes. Clean microphone boom and cable with a damp cloth without solvents. |
▶ What standard applies to sound pressure limitation in headsets? EU Directive 2003/10/EC (noise at work) limits sound exposure to 80 dB(A) as a daily value. Headsets with ActiveProtect (Jabra) or SoundGuard (Plantronics/EPOS) automatically limit peak levels to 118 dB and protect against sudden loud events (fax tone, wrong call). Such protection functions are legally recommended for call centre use. |