Plantronics CS540 Convertible Wireless Headset - Over the head or over the ear - FREE SHIPPING

Gain mobility - multitask, hands-free up to 350 feet (100 meters) One-touch call answer/end, vol +/-, mute and flash controls Energy efficient adaptive power system optimizes for range and talk time Conference in up to three additional CS500 or Savi headsets for enhanced collaboration New headsets can subscribe to a base by simply docking the headset Use with Electronic Hookswitch Cable or Handset Lifter to remotely answer/end calls - sold separately Hands free up to 350 ft - up to 7 hours talk time 1 year manufactures warranty New HP Part# HP SKU: 7W073AA#ABA PRODUCT DATASHEET   HOW TO CHANGE WEARING STYLES   PRODUCT USER MANUAL