Just like the extinct creature it was named after, Boombotix's Rex Bluetooth Portable Speaker will surprise you with its roaring sound. A bass woofer blasts beats, while the full fidelity stereo utilizes two 36mm drivers for clear audio across all genres. Bluetooth's wireless connectivity lets you play your favorites wherever there's a Bluetooth-compatible device; you can even take calls if you're connected to your smartphone. Not to worry if you aren't Bluetooth-savvy yet-Boombotix included a jack that connects to headphones, tablets, and other music-playing devices. You can recharge the battery with any USB device, and it has a run time of six hours with a charge time of only one. The housing protects it from dirt, splashes, and drops, and you can switch out the housings for Boombotix's many unique styles.