MERACH - Slim Vibration Plate Exercise Machine for Therapy, Circulation, Recovery with Remote Control Plate Vibration - White

You receive a resistance band and a remote. The remote will change the speed of vibration from 1 to 5. Yes, you can change the speed while in use. Really nice machine.

It is electric. You plug it in. It also has a remote that comes with batteries.

The vibration frequency ranges from 8 Hz to 11.5 Hz, from the lowest to the highest setting.