Plantronics C054 Wireless Headset | Professional Office Audio
The C054 wireless headset brings professional-grade audio to your desk with DECT 6.0 wireless technology and enterprise-level call clarity. Built for full-time desk workers who spend hours on phone-based tasks, the C054 delivers secure, interference-free connectivity up to 350 feet from its charging base.
Our noise-canceling microphone filters ambient office sounds while the over-the-ear wearing style isolates your audio environment. The rechargeable battery provides up to 13 hours of continuous talk time, and one-touch call controls let you answer, mute, and adjust volume without reaching for your desk phone. We designed the C054 for professionals who demand reliable wireless freedom paired with crystal-clear voice transmission.
C054 technical specifications
DECT 6.0 wireless range and security
The C054 uses DECT 6.0 wireless protocol to eliminate the interference common with 2.4 GHz Bluetooth and Wi-Fi traffic in busy office environments. You maintain full duplex audio quality whether you’re seated at your desk or walking to a colleague’s workspace 350 feet away.
DECT 6.0 transmissions are digitally encrypted, preventing eavesdropping on sensitive client calls or internal discussions. The base station pairs exclusively with your headset, so neighboring devices cannot intercept your audio stream. We include visual and audible low-battery warnings so you’re never caught mid-call without power.
Noise-canceling microphone performance
Our noise-canceling boom microphone positions directly in front of your mouth and uses directional pickup to capture your voice while rejecting sounds from keyboard typing, nearby conversations, and HVAC systems. The windscreen foam further dampens plosive sounds during fast-paced call center work.
Wideband audio support preserves natural voice frequencies between 150 Hz and 6.8 kHz, delivering clearer consonant articulation than narrowband desk phones. Callers hear you as if you were speaking face-to-face, which reduces repeated questions and miscommunication on technical support or sales calls.
All-day wearing comfort and fit
The over-the-ear monaural design keeps one ear open for situational awareness in shared office spaces while the adjustable T-bar headband distributes weight evenly across your head. We use a soft foam ear cushion that doesn’t press hard against your ear even during eight-hour shifts.
At 1.2 ounces, the C054 headset won’t cause neck strain during back-to-back conference calls. The rotating boom arm switches between left- and right-ear wearing, and the flexible mic stays positioned where you set it without drooping throughout the day.
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Common questions about the C054 wireless headset
The C054 connects exclusively to desk phones via the included RJ9 cord and is not designed for computer USB connectivity. For VoIP softphone use on Windows or Mac, we recommend our Voyager or Blackwire USB headset lines.
If you need wireless freedom for both desk phone and computer calls, consider our Savi 700 series dual-connectivity models that pair with desk phones and PCs simultaneously.
The DECT 6.0 wireless range extends up to 350 feet line-of-sight from the charging base. In typical office environments with walls and cubicle partitions, expect reliable connectivity within 150-200 feet.
Range performance varies based on building materials — concrete and metal structures reduce distance more than drywall partitions. The headset beeps when you approach the edge of range, giving you time to walk back toward your desk before the call drops.
Yes, replacement foam ear cushions for the C054 are available through our accessories catalog and install in seconds by sliding off the old cushion and pressing the new one onto the speaker housing.
We recommend replacing cushions every 12-18 months in high-use call center environments to maintain hygiene and comfort. The cushion material is hypoallergenic and latex-free.
No, the C054 uses DECT 6.0 frequency spectrum around 1.9 GHz which does not overlap with 2.4 GHz or 5 GHz Wi-Fi bands. You won’t experience interference with wireless routers, Bluetooth devices, or microwave ovens.
This frequency isolation is why we chose DECT technology for professional office headsets — IT departments appreciate that deploying dozens of C054 units won’t degrade network performance.
The headset emits three ascending tones and announces “recharge headset” when battery capacity drops below 10 percent. You’ll have roughly 30 minutes of talk time remaining at that point.
The charging base LED also flashes red when battery is critically low. We suggest docking the headset whenever you step away from your desk to ensure it’s always ready for the next call.
The C054 is designed exclusively for desk phone connectivity and does not support Bluetooth pairing with smartphones or tablets. The DECT wireless protocol is optimized for office phone systems, not mobile devices.
For smartphone compatibility, browse our Voyager Bluetooth headset collection which offers similar comfort and noise-canceling features with multi-device pairing.
Each C054 package contains the wireless headset, charging base with AC power adapter, RJ9 phone cord for desk phone connection, foam ear cushion installed on the headset, and a printed quick-start guide with compatibility switch settings.
The rechargeable battery comes pre-installed in the headset. Optional accessories like EHS cables or handset lifters are sold separately based on your specific desk phone model.