Conference with confidence with the Poly Calisto 5300 portable speakerphone. USB connectivity allows you to take calls from your PC with the integrated USB cable and from your mobile device and tablet with Bluetooth connectivity. Poly’s Signature Audio quality means you won’t miss a word. With it’s integrated cable management system and convenient carrying case, you will love how easy it is to set up and pack up. Wherever work takes you, the Calisto 5300 portable speakerphone is ready when you are. Featuring 360° audio for clear all around audio.