Kisonli Strong Bass USB Speaker TM-4000U

Features:

• USB 2.1 Power Supply for Laptop/Desktop computer/Cell Phone/MP3 and other Audio Devices.
• The pure black appearance design, pure sound quality the overall perception of the classical steady.
• 3D Surround sound, low Pitch with high fidelity sound, antimagnetic loudspeaker, wonderful music & perfect show.

Specification:

• Output Power: 8W+4W*2
• Sensitivity: 500mV
• RF: 20Hz-20KHz
• S/N Ratio: 97dB
• Power Supply: USB DC5V
• Input Interface: 35.mm
• Speaker Unit: 4'+2.5'x2