CP1120 MINI SPEAKER SYSTEMS Drive unit: 1.5" x2 (magnetically shielded) Compact and portable multimedia speaker system Two high quality micro-drivers delivering powerful sound 3.5mm line input, connects to all types of portable PC,MP3 player, etc. USB, alkaline batteries dual power supply Power supply：USB , 4x1.5V AAA Dimensions：W195xH57xD35 mm Color：Black, White

Technical Specifications Speaker type 1.5" x 2 Frequency Response 80Hz-17KHz Speaker Impedance 8Ω Power Supply USB , 4×1.5V AAA , AC/DC Dual power supply Dimensions 195×57×35mm ( W×H×D)