The PowerFit system helps to revitalize tired, achy, sore legs and feet as it enhances circulation and gives you a relaxing foot and leg massage. The secret is the oscillating vibration system with rotating acupressure heads. It has 10 speed levels, and includes a remote control which allows you to go from soft and smooth toning to deep muscle massage. Easy to use while relaxing at home. Plugs into wall outlet. Remote requires 2 "AAA" batteries (sold separately). Plastic and electronics. 15"L x 13"W.