Electronic:YESHign-concerned Chemical:NoneItem Type:Massage & RelaxationBrand Name:UZZDSSOrigin:Mainland ChinaMassage mode: 6 kinds Massage intensity: 9-level gradient strength Battery capacity: Polymer battery 240mAh Product Size: 325*325MM (12.8*12.8) Material: PU leather + silver paste + eva foam cotton board Product Features: Foot treatment, massage acupuncture points, activate veins, relieve fatigue Package Contents: Charging Type 1 * Foot Massager 1 * English Manual 1 * USB Cable or Battery Type 1 * Foot Massager 1 * English Manual Battery: 3 x AAA batteries required (not included) Relieve Swelling and Tone Down Legs with Precise Electric Pulses! Press the power button to turn on the power, press it again, it is the 1st gear, press 2 times, it is the 2nd gear, and so on, press 9 times, it is the 9th gear, the higher the gear, the stronger the force.