Specification: Name: Electric Massager Color: Red/Black/Silver/Carbon Fiber Color Type: LCD Version Stroke: 12 mm Frequency: 4000 r/min Rated Input: AC 100~240V 50/60Hz Endura nce Time: 6 Hours Number Of Massage Heads: 4 Battery Capacity: 2600 m - Ah Speed Regulation: 20 Gear Control Battery Rated Voltage: DC 16.8V Size: 238 × 240 mm - Advantage: √ Reduced recovery time √ Increased blood flow √ Clears lactic acid √ Releases muscle knots √ Breaks down scar tissue √ Increased range of motionn - Features: – 20-gear speed regulation.- With LCD display, the data is clear.- The ergonomic grip can minimize the external force.- Vibration principle hammering style, strong power to massage muscles.- 24V brushless motor technology brings more stable and comfortable experience.- Independent power management system, charging and discharging more intelligent, prolong battery life.- 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 and collaterals.- Four kinds of massage head, according to the location of massage to choose massage head, bring a more comprehensive massage experience.- The device allows the user to directly target areas of soreness and reduce pain, whilst also reducing recovery time, making it an essential product for any athlete.- Adjust the frequencies according to the purpose, for warming up, soreness relief, injured muscles, muscle pain and activation, tightness relief; increase to higher speeds for larger and stronger muscle groups. - Package Included: 1 x Electric Massager 4 x Massage Heads 1 x Charger 1 x Storage Box 1 x User Manual