The Marsona Travel Sound Conditioner is ideal for the person on the move, helping create a familiar sound environment while away from home. The TSC-330 is compact and lightweight, yet offers the noise masking capabilities of many full sized sound conditioners. We utilize solid state technology to create "white noise" emulating rain, waterfall and surf to effectively mask unwanted sounds and noise. The TSC-330 operates at a touch with two simple slide controls, one for volume and one for tonal range, a three way sound selector and on/off switch. Size: 5 5/8"(L) x 4 1/8"(H) x 2 1/4"(D) Speaker: 3 inch, 8 ohm Weight: 1.2 pounds (including transformer).