Sony SRS A57

Sony SRS A57 ... Featuring a dynamic sound duct for deep, accurate bass with high acoustic output, they combine the best of two worlds, giving you powerful sound from a system that is compact and easy to carry. The built-in Mega Bass system boosts the low frequencies for impressive bass sound. Magnetic shielding allows the speakers to be used next to televisions or computer monitors without their picture quality being disturbed. Its frequency response (70Hz-20kHz) spans virtually the entire music sound spectrum. The on/off switch and volume control are conveniently located at the front of one speaker for easy operation, while the silver color matches most personal audio equipment.