Specifications: Material Plastic Voltage 110-240 V Current 5ABattery 24V Lithium Battery 3 Levels Adjustment Level-1 30 Hz 1800r/min Level-2 40 Hz 2400r/min Level-3 53 Hz 3200r/mim Gear 3 Gear Adjustment Size 248mm x 228mm Storage bag size 225mm x 325mm x 90mm Feature:- 3-gear speed regulation.- High frequency vibration, dissipation of fatigue, deep massage, relaxation of muscles, alleviate pain.- Customized ergonomic massage head can provide comfortable massage experience while reducing the damage to bones & collaterals.- Four kinds of massage head, it can activate the muscles, stimulate blood flow, greatly reduce muscle recovery time, relieve pain & relax from head to toe.- Using 24V lithium battery, charging once, can be used for 4 hours, charging for 2 hours, massage for 4 hours.- Strong noise reduction motor, multi-ventilation slot cooling system, fast heat dissipation & high performance. Package Include:1 x Muscle Massage Therapy Gun 4 x Interchangeable head attachments 1 x User Manual 1 x Charger 1 x Storage Bag