Simplecom UM228 Portable USB Stereo Soundbar Speaker Plug and Play with Volume Control for PC Laptop V28-UM228 Step & Riser Sets Everything you need for an

Everything you need for an afternoon of fun

no external power needed

Number of Springs: 64 required

leaving more time to do your work

Pump controller

Simplecom UM228 Portable USB Stereo Soundbar Speaker Plug and Play with Volume Control for PC Laptop V28-UM228 Step & Riser Sets Everything you need for anSimplecom UM228 Portable USB Stereo Soundbar Speaker Plug and Play with Volume Control for PC Laptop UM228 is a portable computer USB stereo speaker offers excellent sound quality with single USB cable for both audio signal and power. Equipped with dual 4W high sensitive magnetic driver for left and right channel, plus one passive radiator for bass booster, to ensure louder volume, greater dynamic range, richer bass and lower distortion. No need extra