It's easy to see why the likes of Sony might look at JBL and Ultimate Ears' lineup of extremely rugged portable Bluetooth ...

This is a portable speaker that's both compact and durable, while also delivering good sound. Right now, you can grab this ...

The SRS-XB100 packs a two-watt driver and a passive bass radiator that work together to deliver mono audio with a frequency range of 100Hz to 15kHz—pretty impressive for such a small speaker.