updated 03:00 pm EST, Tue January 25, 2011
Razer Ferox gaming speakers have own battery
The Razer Ferox is an ultraportable stereo speaker set made for gamers. They deliver 360 degrees of omni-directional sound and have expandable resonance chambers for better bass than normally possible in such small sizes. Digital amplifiers are also built-in, and the integrated 470mAh battery is said to give 12 hours of audio.
The dual 30mm neodymium drivers are powered by 3W each and connect to a source through a 3.5mm stereo jack. The frequency response is between 150Hz-20KHz. The Ferox speakers include a carrying case and ship later in January for $60.