Item No.: OUN1800 Product Name: USB Ball Massager Description: 1) Massage shoulders, thighs, waists, necks, backs, feet and hands 2) One touch on/off switch 3) Vibration speed: 3,600rpm 4) USB power: 4.0 - 5.5V (150mA) 5) Dimensions: 70 x 43mm 6) Weight: 147g 7) 1.5m USB cable 8) Different colors are available 9) Only for massage purpose, not for medical treatment