Amazon.ca Product Description This Wireless Headset System connects to your office phone, giving you superior comfort and mobility up to 350 feet. Voice-dedicated 1.9 GHz DECT technology and advanced wideband audio provide uncompromised audio quality, the lowest probability of interference, and up to 9 hours of talk time. Adaptive power system optimizes balance between range and talk time. Volume and mute controls at your fingertips allow adjustments remotely. Digital encryption assures secure conversations. You can conference up to three additional CS headsets to have coworkers easily join calls. Battery is 80 percent recharged in 1.5 hours and fully recharged in 3 hours. Headset system includes over-the-head binaural headset with noise-canceling microphone that reduces background noise. Lifter not included. From the Manufacturer Communicate clearly up to 350 feet away from your desk with the CS520 Binaural Wireless Headset from Plantronics. Designed to connect to your desk phone, the CS520 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 offers up to nine hours of talk time and is designed to be worn over-the-head.CS520 Binaural Wireless HeadsetAt a Glance:Manage desk phone calls up to 350 feetWideband audio and noise-canceling microphone provide clearer conversationsOver-the-head wearing styleOne-touch call answer/end, mute, and volume adjust for simple call managementUp to nine 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 desk phone callsComfortable, binaural design and one-touch controls on the headset allow you to answer or end calls and adjust or mute the volume. View larger.Connects to your desk phone and conferences in up to three additional headsets for easier collaboration. View larger.Wireless Multitasking Made EasyOne-touch controls on the CS520 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 CS520 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.Charging Base and Adaptive Power SystemA sleek magnetic charging base is included with the CS520. 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 94 grams and offers up to nine hours of talk time on one battery charge.The CS520 Wireless Headset is backed by a one-year limited warranty.What's in the BoxBinaural headset, over-the-head headband, charging base, base power supply, telephone interface cable, and quick start guide.