The Konftel 300 impresses with many smart and innovative features as well as flexible application possibilities. You can record your conversations on an SD memory card and switch between three connection options (analog, mobile phone, and USB) using the dial switch, even combining them. The conference guide simplifies connecting participants at different conference locations and can save participant groups. This is a great relief for recurring conference calls with the same participants. The Konftel 300 is also perfect for large conference rooms. You can connect additional microphones, a cordless headset, and an existing amplifier system. And of course, everything is always in crystal-clear sound quality thanks to OmniSound HD.