Havit SK473 USB Speaker

Features:

• Frequency: 90 HZ-20KHZ
• Impedance: 4Ω
• Power Output: 3W*2
• Power Input: 5v (USB)

Specifications:

• Jack:3.5mm
• Signal/noise ratio: 84db
• Frequency response: 90 HZ-20KHZ
• Wired : Yes
• USB: USB 2.0
• Power  Output power: 3W*2(RMS)
• Power input : 5v (USB)