JBL has taken the wraps off their OnBeat Extreme, a new portable dock for the iPad, iPhone and iPod touch with support for Bluetooth wireless connectivity. It’s priced at $599.

The OnBeat Extreme has dual bass drivers and tweeters, and features Digital Signal Processing hardware that can be tweaked using a free downloadable app which lets you control equalization settings so you can customize and shape the sound.

The OnBeat Extreme was designed for the iPad and iPad 2, but JBL touts the device’s “rotating dock connector,” which works with iPhone and iPod touch devices as well. What’s more, the OnBeat Extreme can play music from a detached device using Bluetooth wireless connectivity. The OnBeat Extreme supports A2DP and AVRCP Bluetooth profiles. A 3.5 mm input jack lets you connect other devices, and a USB port provides the ability to sync content through iTunes or do a firmware update (assuming you’re not using iOS 5’s over the air and Wi-Fi syncing abilities).

A remote control lets you adjust volume and change tracks; it uses Radio Frequency (RF) so a “line of sight” to the device is not needed.