First International Digital today introduced its newest series of irock! Beamit wireless FM transmitters for portable audio devices. The 440FM features a built-in cigarette lighter power adapter, 90 degree swivel action, and 12 channels of digital tuning. The device is priced at $29.99. The lightweight 450FM plugs into the headphone jack of any portable music player and offers 100 channel digital tuning. It is powered by 1 AAA battery (optional battery-free operation when used with the included 12VDC auto adapter) and sells for $39.99.