Speaker unit: 1.5" x2 (magnetically shielded), Compact and portable multimedia speaker system, Two high quality micro-drivers delivering powerful sound with amazing clarity. 3.5mm line input, connects to all types of portable PC,MP3 player, etc. USB , AC/DC Dual power supply, Using 4 AAA size alkaline batteries. AC Adapter Included but Batteries Not included.
Speaker unit: 2" x2 (magnetically shielded, Portable multimedia speaker system, perfect for Notebooks, Two high quality micro-drivers delivering powerful sound with amazing clarity. 3.5mm line input, connects to all types of portable PC,MP3 player, etc. USB , AC/DC Dual power supply