Satechi is shipping the Audio Cube Bluetooth Speaker with a portable design. It’s available for US$44.99 at and 

The Satechi Audio Cube Bluetooth Speaker delivers 2×2 watts of audio performance. It’s compatible with any Bluetooth-enabled device including iPhone 4S, Android phones, new iPad, Samsung Galaxy Tab, MacBook Pro and more.

The Cube weighs 9.6 ounces and has a built-in rechargeable battery for six hours of playtime. It boasts a dual-channel speaker system with each channel output providing two watts of power.

The speaker has an auxiliary port to connect other non-Bluetooth devices or to double as an extended speaker for existing audio systems. It can also be controlled via the integrated volume, pause/play and power buttons on the top of the speaker. The Audio Cube Bluetooth Speaker can be recharged via any USB port.