Professional DECT Wireless Headset for Seamless Desk Phone Communication
Experience crystal-clear professional communication with the Poly CS540A DECT Wireless Headset featuring DECT 1880–1900 MHz frequency, 7-hour talk time, convertible wearing styles, and an ultra-lightweight 25g design that delivers exceptional comfort during extended business calls. This brand new, in-box headset represents the pinnacle of desk phone wireless technology, engineered specifically for professional environments requiring reliable, interference-free communication.
Ideal Use Cases
Perfect for busy professionals, call center operators, receptionists, and office workers who need hands-free mobility while staying connected to their desk phone. Whether you're multitasking between calls, taking notes, or moving around your workspace, this headset ensures you never miss important conversations while maintaining professional audio quality.
Key Features & Benefits
- Ultra-Lightweight Design: At just 25 grams, enjoy all-day comfort without fatigue
- Convertible Wearing Styles: Switch between over-ear, over-head, and behind-head configurations with the included accessory fit kit
- DECT Wireless Security: Encrypted communication eliminates Wi‑Fi interference and ensures call privacy
- Extended Battery Life: Up to 7 hours of continuous talk time for full workday coverage
- Wideband Audio: Superior sound quality with a noise-cancelling microphone for crystal-clear conversations
- Plug-and-Play Setup: Simple RJ-11 connection directly to your desk phone
- Professional Range: Up to 120 metres of wireless freedom in typical office environments
Technical Specifications
- Weight: 25 grams (headset only)
- Talk Time: Up to 7 hours
- Standby Time: Up to 100 hours
- Wireless Technology: DECT 1880–1900 MHz
- Range: Up to 120 metres line of sight
- Audio: Wideband and narrowband modes
- Connectivity: RJ-11 desk phone connection
- Charging Time: 3 hours for full charge
- Microphone: Noise-cancelling with flexible boom
- Wearing Styles: Over-ear, over-head, behind-head convertible
Quality Assurance & Warranty
This brand new, factory-sealed Poly CS540A comes with full manufacturer-quality standards and is backed by comprehensive warranty coverage for your peace of mind.
Why Choose This Headset
Choosing the Poly CS540A (brand new, in-box) means you get premium professional equipment, reliable performance, and long-term durability—ideal for demanding business environments.
Ready to enhance your professional communication? Add this brand new Poly CS540A DECT Wireless Headset to your cart today and experience the freedom of wireless desk phone communication with uncompromising audio quality.
| Interface(s) | Bluetooth |
| Number Of Lines | None |
| Model | CS540A |
| Type | Wireless Headset |
| Colour | Black |
| Modified Item | None |
| Brand | Plantronics |
| Part Number | 84693-03 |
| Custom Bundle | No |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade monitors are for those who expect a display showing very little to no signs of previous use. With minimal scuffing or abrasions on the housing/frame and no imperfections on the screen, these units offer an almost-new viewing experience.
"Good" Grade - Laptops
"Good" grade laptops are fully functional but come with signs of more extensive use compared to Excellent grade units. This includes scratches on the laptop body, heavier wear on keyboards, and possible small dents or paint chips. Screens may show uneven light diffusion and subtle blemishes but no cracks.
"Good" Grade - Desktops
Similar to laptops, "Good" grade desktops may exhibit light scratches and more noticeable wear on the case compared to "Excellent" grade PCs. Small dings or paint chips might be present but do not affect functionality.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include body scratches, minor cracks, or a loose/wobbly base. Screens could display uneven light diffusion and moderate blemishes but remain free from cracks.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade
