From a full charge, we were able to stream Pandora over Bluetooth at maximum volume (a worst-case scenario) for five full hours before the box gave up the ghost, and managed well over sixteen hours in mixed testing with a variety of sources and settings.

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Note controls up front for volume and LED indicating bluetooth status.

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When Bluetooth Audio finally hooked up, it played at a nearly inaudible volume, and I had to turn it up every time.

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Other new features include a new digital amplifier, a Bluetooth remote, and a settings memory to remember your source, volume and EQ levels for next time.

ENGADGET

With Bluetooth capability, you can use a discreet remote control to change volume, turn the device on and off, toggle between electronic devices, answer hands-free phone calls and stream music, sort of like having a miniature wireless headset in your ear.

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The fingertip-sized UbiChip that forms the guts of the device can be put into pretty much anything provided it's in contact with your skin and it can detect the shock so you could turn on a Bluetooth headset by tapping your earlobe rather than fumbling for a button, or tweak the volume of your cellphone by tapping your face.

ENGADGET: A fingertap away