This vibrating massage ball is designed to treat small muscle groups.Its high intensity vibrations helps deep into muscles for an effective tension release massage.Ideal for warming up, circulation improvement and recovery of sore and tight muscles.The advanced design gives you access to difficult pain points and offers both relief and relaxation. It works to massage and relieve your back, hips, legs, arms, waist and feet.Rechargeable, one button start, 4 speed vibration adjustment, silent frequency conversion.Material: ABS / SiliconeSize: 11x11 cmColor: BlackNominal Power: 12 WBattery Capacity: 2000 MAHNominal Voltage: 100-240 HPackage List:1 x Massage Ball1 x Charging Adapter1 x English Instructions