Microphone Settings for Virtual Meetings on Your ThinkPad | Lenovo PC - YouTube
Lenovo ThinkPad E550 15.6 (128GB SSD, i5-6200U CPU @ 2.30GHz 8GB RAM) Win 10 Pro | eBay
User Guide
ThinkPad Edge E550 (20DF0030US) Notebook Intel Corei5 5200U (2.20GHz) 4 GB Memory 500 GB HDD Intel HD Graphics 5500 15.6" Windows 7 Pro 64-Bit downgrade rights in Windows 8.1 Pro 64-Bit - Newegg.com