A press release from the companies announced that wireless media company Kleer and headphone and audio accessory company DigiFi have collaborated to produce and release the Opera wireless over-the-ear style earbuds and iPod adapter.

The Opera promises both quality sound as well as the convenience provided by wireless technology. Kleer’s lossless wireless technology enables up to four Opera users to simultaneously listen to the same audio stream from a singular portable media player for up to 10 hours of continuous play. The Opera will be distributed worldwide in June 2008 for around $100.

[Via Playback]