Description

🎧 Plantronics CS540 DECT Convertible Wireless Headset

Effortless communication, increased mobility.
The Plantronics CS540 (also sold as Poly CS540/HP 7W073AA#ABA) is engineered for professionals who need hands-free flexibility without compromising call quality. Its lightweight, convertible design and powerful DECT range make it perfect for desk-heavy roles across industries.

🔑 Key Features

• Ultra-light & Convertible
  Weighs just 21 g in over-ear mode—the lightest DECT headset available—with optional headband and neckband styles hp.com+15superiortelephone.com+15headsetadvisor.com+15headset.com+3headsetadvisor.com+3headsetsdirect.com+3.

• Up to 350 ft (≈107 m) DECT Range
  Seamless roaming freedom in busy work environments, with no Bluetooth interference ergodirect.com+5headset.com+5headsetadvisor.com+5.

• Noise-Canceling & DSP Audio
  CAT‑iq wideband (up to 6.8 kHz) and noise-canceling mic ensure clear sound and reduce listener fatigue reddit.com+2hp.com+2headsetsdirect.com+2reddit.com+4headset.com+4ergodirect.com+4.

• 7 Hours of Talk Time
  Reliable battery life, with easy docking to recharge between calls youtube.com+13headset.com+13reddit.com+13youtube.com+9cookandboardman.com+9headsetadvisor.com+9.

• Conference Up to 4 Headsets
  Supports pairing multiple CS540 units to a single base—ideal for small-team call collaboration amazon.com+12headset.com+12headsetadvisor.com+12.

• One-Touch Controls & Remote Answering
  Integrated volume, mute, and call control buttons; accessories like HL10 lifter or EHS cable enable remote answering hp.com+9headset.com+9headsetsdirect.com+9.

• Secure & Reliable Connection
  DECT 6.0 frequency avoids Wi-Fi interference, with DECT security certification for firm-level reliability ergodirect.com+3headset.com+3ergodirect.com+3.

• Replaceable Battery
  User-replaceable battery ensures long-term value and sustainability hp.com+6headsetsdirect.com+6reddit.com+6.

📊 Technical Highlights

👍 Pros & 👎 Considerations

👍 Pros

• Featherweight, comfortable for all-day use (esp. earhook mode) amazon.com+7reddit.com+7bestbuy.com+7.

• Excellent call clarity and noise suppression—well-reviewed by users headset.com+14headsetadvisor.com+14ergodirect.com+14.

• Flexible configuration options and replaceable battery extend longevity.

👎 Cons

• Some users report earpiece fit issues in earhook mode youtube.com+12amazon.com+12headsetsdirect.com+12.

• Talk time reduces to ~4 hrs in HD/wideband mode ergodirect.com+4headsetadvisor.com+4cookandboardman.com+4.

✅ Why Choose the CS540?

Ideal for office and call-heavy environments, the CS540 delivers a winning combo of lightweight comfort, roaming freedom, and reliable audio. Its convertible design, replaceable battery, and conference-readiness make it a versatile asset for teams—and its security features suit even sensitive workspaces.