Check the listing for details. Plantronics CS540 Wireless Headset system ***Perfectly working***. Color: Black, Condition: Used. Listed at 100.00 USD. HIGH QUALITY HEADSET: Wideband audio quality includes superior technology that eliminates Wi Fi interference and acoustic protection against audio spikesSUPERIOR RANGE: Wireless multitasking is easy with DECT 6.0 technology, allowing you to clearly communicate up to 350 feet away from your deskLIGHTWEIGHT DESIGN: Sleek design for the most comfortable and lightest DECT headset on the market and includes one touch controls to answer or end calls. Narrowband or wideband: up to 6,800 HzLONG LASTING BATTERY: Features an energy efficient adaptive power system to conserve battery life. Connects to Desk phone. Talk time Up to 7 hrADVANCED MICROPHONE TECHNOLOGY: Wireless headset includes an extended boom to improve microphone quality and features noise canceling microphone that reduces background noise. NOTE This headset is NOT Bluetooth compatibleHearing protection: SoundGuard: Protects against sound levels above 118 dBAKINDLY NOTE: Use with Electronic Hookswitch Cable or Handset Lifter (both sold separately) to remotely answer/end calls Product DescriptionPLANTRONICS PL-CS540 Convertible Wireless HeadsetFrom the ManufacturerCommunicate clearly up to 350 feet away from your desk with the CS540 Wireless Headset from Plantronics. Designed to connect to your desk phone, the CS540 sports a sleek, lightweight design and has been comfort-tested. One-touch controls on the headset allow you to answer or end calls and adjust or mute the volume. The system also enables you to conference in up to three additional headsets for easier collaboration. The headset comes with ear loops as well as a headband, allowing you to find the most comfortable wearing style--over the ear or over the head.CS540 Wireless Headset SystemAT A GLANCE:Manage desk phone calls up to 350 feetWideband audio and noise-canceling microphone provide clearer conversationsThree different wearing styles: over the ear, over the head, or behind the headOne-touch call answer/end, mute, and volume adjust for simple call managementUp to seven hours of battery life on one charge; adaptive power system helps conserve battery lifeUse with Electronic Hookswitch Cable or Handset Lifter (both sold separately) to remotely answer/end callsThe charging base connects to your desk phone. View larger.DECT technology is designed to provide long range and maximum call clarity.Wireless Multitasking Made EasyOne-touch controls on the CS540 Wireless Headset allow you to answer or end calls and adjust or mute the volume. The system also enables you to conference in up to three additional headsets for easier collaboration. The headset comes equipped with DECT 6.0 technology that allows you to talk hands free up to 350 feet away from the base.Engineered for Outstanding Sound QualityIn addition to DECT technology, the CS540 offers wideband audio for clearer phone conversations. The headset's noise-canceling microphone filters out background noise and enhanced Digital Signal Processing (DSP) makes voices sound more clear and natural.Multiple Wearing Styles to Suit Your NeedsThe CS540 sports a sleek, lightweight design and has been tested for comfort. It can be worn over the ear for a discreet look or over the head for greater stability. A neckband (sold separately) also allows you to wear the CS540 behind the head.Charging Base with Adaptive Power SystemA sleek magnetic charging base is included with the CS540. An adaptive power system optimizes for range and talk time by automatically downshifting to low power when the headset is close to the base to save battery life.Plantronics also offers the HL10 Handset Lifter (sold separately) which can be attached to your desk/office phone to complete your cordless headset system. The HL10 lifts up and replaces the handset so you don't have to be at your desk to answer the phone or to hang up.Product and Warranty InformationThe headset weighs 21 grams and offers up to seven hours of talk time on one battery charge. Perfectly working Condition!!! Package Contents:HeadsetCharging cradle baseTelephone cordAC adapter Earloop