Poly (Plantronics) CS540A is an ultra-lightweight, single-ear wireless headset with your choice of wearing style: over-the-ear with an earhook or over-the-head with a headband. (A neckband for behind-the-head wearing is available separately.) CS540A has an incredible wireless range of up to 350 feet and weighs just 21 grams when used with the earhook. It communicates wirelessly using DECT with the included Office base. Connect the Office base to a telephone — and you have a wireless headset for your phone.

CS540A features excellent audio quality with a noise-cancelling microphone and enhanced digital signal processing (DSP). SoundGuard technology protects your ears. You can conference up to 4 CS540A headsets with a single Office base to improve collaboration. CS540A offers up to 7 hours of talk time on a single charge. It features an adaptive power system that optimizes power usage based on range and talk time, so when you're closer to the base, it uses less power.

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Poly CS540A Quick Specs:

• Connectivity: DECT
• Wireless Range: up to 350 ft
• Wearing Style: convertible (earhook, headband)
• Battery Life: up to 7 hr (talk time)

Poly CS540A Convertible DECT Wireless Headset Package Contents:

• Headset with Pre-Installed Battery, Eartip and Earloop
• Office Base
• Kit with Eartips and Earloops
• Headband
• Telephone Interface Cable (TIC)
• AC Power Adapter

Poly CS540A Documentation:

• Poly CS540A Datasheet