--- product_id: 741612151 title: "Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive" brand: "poly" price: "€ 12.22" currency: EUR in_stock: false url: https://www.desertcart.de/products/741612151-poly-cs540-wireless-dect-headset-plantronics-single-ear-mono-convertible store_origin: DE region: Germany --- # Convertible 3-way wearing styles Up to 350 ft wireless range 13 hours talk time per charge Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive **Brand:** poly **Price:** € 12.22 **Availability:** ❌ Out of Stock ## Summary > 🎙️ Elevate your desk calls with wireless freedom and crystal-clear clarity! ## Quick Answers - **What is this?** Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive by poly - **How much does it cost?** € 12.22 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/741612151-poly-cs540-wireless-dect-headset-plantronics-single-ear-mono-convertible) ## Best For - poly enthusiasts ## Why This Product - Trusted poly brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Day Power:** Stay connected with an impressive 13 hours of continuous talk time on a single charge. - • **Custom Comfort Fit:** Switch effortlessly between ear hook, headband, or neckband styles to match your work vibe. - • **Noise-Canceling Clarity:** Block out distractions with a professional-grade microphone that silences background noise. - • **Secure & Interference-Free:** DECT technology ensures crystal-clear calls without Wi-Fi interference, keeping conversations private. - • **Unmatched Wireless Freedom:** Seamlessly roam up to 350 feet from your desk without dropping calls or quality. ## Overview The Poly CS540 Wireless DECT Headset is a professional-grade, single-ear convertible headset designed for desk phone use. Featuring up to 350 feet of wireless range, 13 hours of talk time, and advanced noise-canceling microphone technology, it offers superior audio quality and customizable wearing styles. DECT technology ensures secure, interference-free communication, making it ideal for busy professionals seeking mobility and clarity in office or call center environments. ## Description The CS540 sets the wireless standard for desk phone communication. This convertible DECT™ headset features a streamlined design and professional performance so you can get more done—even on the move. The noise-canceling microphone reduces background noise interruptions, ensuring great audio quality and easing listener fatigue. More freedom means more productivity. ## Features - EXTENDED RANGE AND TALK TIME: The adaptive power system optimizes for range and talk time by automatically downshifting to low power when the headset is close to the base. - SOUNDGUARD TECHNOLOGY: SoundGuard acoustic limiting technology protects against Acoustic Shock by limiting sounds to below 118dBA ensuring listening comfort and protection against audio spikes. - SUPERIOR AUDIO QUALITY: Your choice of narrow or wideband professional grade audio quality -- choose narrowband to extend talk time or wideband mode to enable clearer conversations. - MAXIMUM PROTECTION: The CS540 headset includes DECTTM technology that provides better audio quality and eliminates interference from Wi-Fi networks while calls stay safe and secure. ## Technical Specifications | Specification | Value | |---------------|-------| | Model Name | CS540 | | Connectivity Technology | Wireless | | Wireless Communication Technology | DECT | | Included Components | Headset, USB-C to USB-A adapter | | Age Range (Description) | Adult | | Material | Plastic | | Specific Uses For Product | Office, Call Center | | Recommended Uses For Product | Calling | | Compatible Devices | Desktops, Laptops, Telephones | | Control Type | Touch Control | | Cable Feature | Retractable | | Water Resistance Level | Not Water Resistant | | Frequency Range | 20 Hz - 20,000 Hz | | Customer Package Type | Possibly FFP | | Style | 2023 Version | | Control Method | Touch | | Number of Items | 1 | | Audio Driver Type | Dynamic Driver | | Carrying Case Color | Black | | Earpiece Shape | Angular, around-ear | | UPC | 017229196544 196548548477 | | Special Feature | Microphone Included | | Manufacturer | Poly | | Model | 2-84693-333 | | Product Dimensions | 16.51 x 3.18 x 16.46 cm; 490 g | | Batteries | 1 Lithium Ion batteries required. (included) | | Item model number | 2-84693-333 | | Special Features | Microphone Included | | Batteries Included | Yes | | Batteries Required | Yes | | Battery cell composition | Lithium Ion | | Cable feature | Retractable | | Form Factor | On Ear | | Does it contain liquid? | No | | Includes Rechargeable Battery | Yes | | Item Weight | 490 g | ## Product Details - **Brand:** POLY - **Colour:** Black - **Ear Placement:** Over Ear - **Form Factor:** Over Ear - **Noise Control:** Active Noise Cancellation ## Images ![Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive - Image 1](https://m.media-amazon.com/images/I/614nnUw7YPL.jpg) ![Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive - Image 2](https://m.media-amazon.com/images/I/71K3sAjhsCL.jpg) ![Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive - Image 3](https://m.media-amazon.com/images/I/71Rqk9F9FpL.jpg) ![Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive - Image 4](https://m.media-amazon.com/images/I/718Uv5iqPvL.jpg) ## Available Options This product comes in different **Size, Style Name** options. ## Frequently Bought Together - Poly CS540 Wireless DECT Headset (Plantronics) – Single Ear (Mono) Convertible (3 wearing styles) – Connects to Desk Phone – Noise Canceling Microphone – Amazon Exclusive - Plantronics 38350-13 APC-43 Electronic Hook Switch Adapter, Black - Plantronics - APC-43 EHS Cable for CS500 series --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/741612151-poly-cs540-wireless-dect-headset-plantronics-single-ear-mono-convertible](https://www.desertcart.de/products/741612151-poly-cs540-wireless-dect-headset-plantronics-single-ear-mono-convertible) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-06-21*