Sony SRS-A27 Desktop Personal Speakers with 2-Way Power Supply Portable speakers are full-range, and provide 2 watts of power Magnetic shielding will not disturb TV or computer monitor Built-in Mega Bass for deep, bass sound On/off switch at front of speaker for easy adjustments; 2 meter long speaker cords 2-way power supply: AC adaptor or 4 AA batteries (both not included)