Manufacturer’s Description

CS540 Wireless Headset for Avaya Telephones Now it's lighter. At only 21 grams the CS540 features the lightest DECT headset on the market. That means all-day comfort for all-star performance. And now it's better. Increased range for maximum mobility one-touch controls energy efficient power management simple plug-and-talk installation -- the CS540 does it all. REQUIRED: Please remember to select your model of phone using the drop down menu below. New: Plantronics CS540 Wireless Headset Features Range up to 350 feet away for maximum mobility DECT technology provides better audio eliminates interference from Wi-Fi networks Up to 7 hours talk time Convertible from over-the-ear to over-the-head - tailored for comfort Premium wideband audio quality noise-canceling microphone One-touch call answer/end volume up/down mute and flash controls Smart power management system optimizes for range and talk time New headsets can subscribe to a base by simply docking the headset Electronic hookswitch for remotely answering and ending calls Compatibility The following Avaya telephones are compatible with the CS540 and do not require the additional HL10 accessory (not included) to obtain full hookswitch control and ring detection 1408 1416 1608 1608-I 1616 1616-I 2410 2420 4610SW 4620 4620SW 4621 4621SW 4622SW 4625SW 4630 4630SW 5410 5420 5610 5620 5621SW 6416D+M 6424D+M 9404 9408 9504 9508 9608 9611G 9620 9620C 9620L 9621G 9630 9630G 9640 9640G 9641G 9650 9650C Warranty New - 1 Year Manufacturer Like New - 90 Day MetrolineDirect

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