... High quality Mini Portable Speaker for PC,Laptop,Mobile phone:USB connecting with PC,LED light Portable USB Mini Speaker for PC,Laptop,Mobile phone1 ... play music, you can open the under lip to make speaker stand on your table,it looks more pretty.Power Source ... :4.2VS/N Ratio: 90dBImpedance:8 ohms Portable USB Mini Speaker for PC,Laptop,Mobile phone