As educators continue to deploy more sophisticated audio-visual technology in the classroom and outside, Califone International LLC, the premier manufacturer of quality audio technology and sound presentation solutions for schools, houses of worship, industry, institutions and presenter uses, has upgraded its portable PA419-02 wireless speaker with new wireless capabilities. With a single unit being loud enough for three hundred people, the 30W PA419-02 is easier to play music from synced smartphones and other mobile devices through an industry-first addition of Bluetooth and NFC capabilities.