The X-mini series of portable speakers may not have changed much in appearance over the years (with a few exceptions), but the company behind them has now finally made one significant upgrade: it's produced a Bluetooth model. As with the other speakers, the new X-mini KAI is a pocket-sized device, and it can be daisy chained with additional speakers for some bigger sound (a standard 3.5mm jack is also included for your non-Bluetooth devices). No word on a North American release just yet, but you can look for it to hit parts of Asia in December for around $100, and
