Green Lion Intelligent Under Foot Massager -Power : 20W -Material : ABS -Battery : 2500mAh -Charge Time : 4 Hours -Working Time : 2 Hours -Automatic Activation -Magnetic Therapy Green Lion Intelligent Under Foot Massager -Power : 20W -Material : ABS -Battery : 2500mAh -Charge Time : 4 Hours -Working Time : 2 Hours -Automatic Activation -Magnetic Therapy