Jammin Pro NS5 Nearfield USB Studio Monitors Two-way, active pair of reference studio-monitor loudspeakers Fully USB powered - not external power requiredSOUNDCARD Built-in Plug and Play, driver free installation Made with MDF - Four-inch lightweight LF woofer One-inch silk-dome tweeter Wide 50 - 20,000 Hz frequency response, AJ10`RMS 2W x 2 Power output Easy Volume Control panel on the top with MUTE We built NS-5 with a four-inch low-frequency driver for full, smooth response in the low end and pair with a one-inch silk dome high-frequency driver for absolute clarity in the highs. Our custom crossover avoids the crucial vocal midrange. studio monitoring system designed for professional studio or home studio with USB soundcard built in.NS-5 is a pair of two-way reference monitors that play from 20,000 Hz all the way down to 50 Hz to cover nearly all frequencies audible to human ears. NS-5 is a fully USB powered monitor speaker so that you can just plug NS-5 to your computer or laptop via the USB and then you are ready to enjoy the high quality studio sound,