<p>The <b>Plantronics CS540</b> is a wireless headset system which gives premium audio performance and sleek, comfortable styling. The Plantronics CS540 features a top-of-the-line noise-canceling microphone for clear speech even in environments with distracting background noise. The stylized, lightweight convertible design of the Plantronics CS540 is not only discreet; it is comfortable enough to be worn all day. The CS540 has superior microphone and earpiece create a high-performance headset yielding great results for both traditional phone lines and IP telephony systems. <br /><br /> The <b>Plantronics HL10 Headset Lifter</b> fits on telephone letting you answer calls with just the touch of a button. The HL10 headset lifter automatically takes your handset off hook. <br /><br /> <b>CS540 Features:</b> <br /><br /> 1.9 GHz Cordless Headset<br /> DECT 6.0 Technology<br /> Convertible Over the Head / Ear<br /> Wireless Noise-Canceling Microphone<br /> Enhanced Digital Signal Processing<br /> Elegant Magnetic Headset Docking<br /> Range of Up To 350 Feet<br /> One-Touch Volume / Mute / Call Answer / End Controls<br /> CAT-iq Technology - For High Definition Voice Quality<br /> Clear, Private, & Secure Conversations<br /> 64-Bit Digital Encryption<br /> Charge Indicator Light<br /> Up To 7 Hours Talk Time<br /> Discreet, Stylized Design<br /> Lightweight and Comfortable All Day<br /> Optimized for Performance w/ IP Desk Phones<br /> Recommended for All Environments, Even Those w/ Loud Noise Level<br /><br /><b>60961-31 Features:<br /></b><br />Savi HL10 Lifter with Straight Plug<br /> Automatically Lifts Handset and Returns It to Cradle<br /> Enables Remote / One Touch Controls (w/ Plantronics Headset)<br /> Quick & Quiet Operation<br /> Compatible w/ Most Desktop Phones<br /> No Desktop Footprint</p>