WiDio Wireless Audio - Review What is Widio you ask ? Well my fellow guru's a Wireless Audio Device. It's a gadget that I just had to show you in a review, so the minute it became available Albatron submitted it for a test. Widio is a small wireless audio transmitter and receiver device that broadcasts on the 2.4 GHz band at a rate of 2Mbit per second. You can connect to towards for example your DVD, CD, MP3 Player, PC or even XBox for all I care and then broadcasts that signal to the range available, roughly 40-50 Meters.