The stylish portable cube shaped Yamaha NX-A01 is currently only available in Japan. Japanese Gadget exporter AudioCubes is shipping this cool speaker internationally.

Measurements of the NX-A01 are 3.3x4.6x3.3inches. Yamaha packs excellent sound quality in this small cube. To top things off an optional Bluetooth receiver is available that lets you listen to audio via a Bluetooth enabled mobile phone.

The Yamaha NX-A01 sells for $129.00. The Yamaha TRX-RO1BT Bluetooth receiver sells for an additional $129.00.
Yamaha will apparently show the NX-A01 at the IFA in Berlin. This should mean that the device will be available officially outside of Japan. No word if the company is also going to offer the Bluetooth receiver TRX-RO1BT.