Tender For procurement, installation and maintenance of language lab work - wired headphone with mic and usb: (sennheiser pc 8.2 bose/ sony or similar) 2-year comprehensive warranty or as per oem terms (whichever is higher), software offering features like audio/video labs, pronunciation tools, cefr-aligned courseware and exercises for improving listening, speaking, reading, and writing (lswr) skills for english and other languages. (orell talk core version, lanquill, digital teacher/english lab, sanako study, digital teacher (dt-dell), talk right, smartlab) requirement: 1 teacher plus upto 20 students with 500 user id, with onsite software installation on pcs, implementation, training and support 3 year amc and content updates for the software.