Product description ofD7 High BASS- Multimedia Speaker Mini USB for laptop desktop /mobile:

• Origin:China
• Frequency Response : 100HZ-18KHZ
• Power/Voltage : 5V/1A
• Output Power (R.M.S.) : 3W x2(THD<1%)
• SNR : 8dB
• nput impedance : 4 Ohm
• Speaker : 52mm x2
• Portable Wireless Bluetooth Speaker with Special LED Lights – SD Card – USB Supported – FM Radio (KTX-1057)
• Support Various Audio inputs: Memory Card, FM Radio,USB
• With Main Volume Control
• Bluetooth Quick Connectivity
• High Quality Sound and Bass.
• Bluetooth connection could support desktop computer, notebook computer, iPad, iPhone, Android, MP3/4, PSP

Product details of  D7 High BASS- Multimedia Speaker Mini USB for laptop desktop /mobile:

• Origin:China 
• Frequency Response : 100HZ-18KHZ
• Power/Voltage : 5V/1A
• Output Power (R.M.S.) : 3W x2(THD<1%)
• SNR : 8dB
• nput impedance : 4 Ohm
• Speaker : 52mm x2
• Portable Wireless Bluetooth Speaker with Special LED Lights – SD Card – USB Supported – FM Radio (KTX-1057)
• Support Various Audio inputs: Memory Card, FM Radio,USB
• With Main Volume Control
• Bluetooth Quick Connectivity
• High Quality Sound and Bass.
• Bluetooth connection could support desktop computer, notebook computer, iPad, iPhone, Android, MP3/4, PSP