Compare Open-Ear Designs
Compare open-ear and bone-conduction wireless audio by mechanism, fit, awareness limits, and the model details to verify before buying.
Poly CS540A Black Wireless Headset, Mono
Available offers (2)
Current
Black
Newegg
€204.20
Available to order
Features
- DECT 6.0 wireless technology; frequency range: 1920–1930 MHz.
- Wireless range: 393.7 ft.
- Mono (monaural) audio; over-the-ear, over-the-head, and in-ear wearing styles.
- Noise-cancelling microphone; noise canceling.
- TAA compliant.
- Parts: 1 Year.
General specs
- Brand: Poly
- Model: CS540A
- Seller: Newegg
- ID: 9SIA0ZXK3W3265
- Brand: Poly
- Parts: 1 Year
- Microphone: Noise-cancelling microphone
- Model Name: CS540A
- Part Number: 7W073AA#ABA
- Product Type: Wireless headset
- TAA compliance: TAA compliant
- Wearing styles: Over-the-ear; over-the-head; in-ear
- Wireless Range: 393.7 ft
- Frequency Range: 1920–1930 MHz
- Noise Cancellation: Noise canceling
- Audio configuration: Mono; monaural
- Wireless Technology: DECT 6.0
- First listed by seller: October 20, 2026
If you are interested in more details, you can find full information on the seller's page.
€204.20
Last price update: 11/10/26
Available to order
Price History for seller Newegg
| Date | Price |
|---|---|
| 11/10/26 | €204.20 |
| 10/20/26 | €204.19 |
Shipping options
Delivery to 
United States
United States
Available
Wireless mono headset with DECT 6.0 technology, a noise-cancelling microphone, and three listed wearing styles.
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Poly CS540A Black
|
HP Poly 85T27AA#ABA DECT 6.0 wireless technology
|
HP Poly 7E2J8AA Black DECT wireless technology
|
Cisco 561 Headset Black
|
Plantronics CS540 XD Black Mono wireless headset
|
Poly 7320 Stereo audio configuration
|
|
| Brand | Poly | HP Poly | HP Poly | Cisco | Plantronics | Poly |
| Model | CS540A | 85T27AA#ABA | 7E2J8AA | 561 Headset | CS540 XD | 7320 |
| Color |
|
|
|
|
||
| Price | €204.20 | €129.37 | €287.81 | €264.29 | €165.51 | €303.08 |
| Seller | Newegg | Newegg | Newegg | Newegg | Newegg | Newegg |
| Update | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Model Name | CS540A | CS540 | CS510 XD | 561 Headset | CS540 XD | 7320 |
| Part Number | 7W073AA#ABA | 85T27AA#ABA | 7E2J8AA | CP-HS-WL-561-S-US= | 88283-01 | 7S429AA#ABA |
| Product Type | Wireless headset | Wireless headset | wireless headset | wireless mono headset | Mono wireless headset | wireless headset |
| Wireless Range | 393.7 ft | 351 ft | 590 ft | |||
| Audio configuration | Mono; monaural | Monaural | Stereo | |||
| Wireless Technology | DECT 6.0 | DECT 6.0 | DECT | DECT 6.0 | DECT 6.0 | |
| Wearing Style | Earbud, on-ear and in-ear | On-ear; over-the-head; supra-aural | Over-the-head | |||
Poly CS540A Black
€204.20
When this device makes sense
Product confidence
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.