Combining simplicity and clarity, the Plantronics CS50 Wireless Office Headset System offers hands-free comfort with the advantages of a standard corded headset system. With the latest DECT 6.0 and futuristic noise-cancelling technology, this business-class phone headset system provides clear audio clarity and comes with a 300 feet roaming range. A single charge provides a talk time of approximately ten hours. Its handset lifter permits users to receive and hang-up calls from their workstations with ease. The convertible headset ensures ease of use. You can use it over-the-ear or over-the-head. For more comfort, you also get the optional neckband for behind-the-head usage. With digital 900MHz, you can be assured that your conversations are secure.