Once you plug the Ferox's USB port into a computer and allow the speakers to fully charge, Razer tells us you'll get approximately 12 hours of play time before you run out of juice. The bottoms of the satellite speakers pulse with a faint blue light to indicate the charging status, and we should note that each speaker is capable of stereo sound on its own without its sibling.
After the speakers are fully charged, you can release them from the computer and listen to your music on the go by plugging the cable into an iPhone, iPad, iPod, or other audio device with a 3.5mm input jack. We don't doubt the durability of the braided cord and we appreciate the ballistic nylon carrying case Razer includes with the hardware, but the act of plugging in a music player feels inelegant compared with a Bluetooth wireless option like the Creative D100.
On the other hand, the D100 speaker doesn't come with a built-in rechargeable battery as the Ferox does. Instead, you have to load up the speaker with four AA alkaline batteries before you head out, but the D100 also comes with a hardwired 3.5mm cable if you want to play music from a non-Bluetooth device.
Razer claims that the rising driver chamber should strengthen the bass and overall resonance of your music, but our test results place the speakers only a notch above the disappointing LaCie USB Speakers. We pumped multiple songs and various genres including pop, hip-hop, indie rock, and jazz through the Ferox speakers and were disappointed with the results.
The speakers are capable of higher volumes than your standard laptop or smartphone speaker, but not by much. Bass response is almost nonexistent, more like a weak jab than a punch, and the shrill treble dominates the midrange and low tones. The speakers certainly fail in their attempt to provide anything close to an "omnidirectional" surround-sound experience, whereas the Creative D100 is much better suited for a gaming party, an office gathering, or solo dorm-room listening.