Advantages:Reduces recovery timeIncreased circulationClears lactic acidGives muscle knotsBreaks scar tissueIncreases range of motionProperties:3-gear speed regulation.The ergonomic handle can minimize the external force.Vibration principle hammering style, strong power to massage muscles.Brushless motor technology brings more stable and comfortable experience.Independent power management system, charge and discharge more intelligent, extend battery life.High frequency vibration, dissipation of fatigue, deep massage, relaxation of muscles, relieve pain.Adjusted ergonomic massage head can provide comfortable massage experience while reducing the damage to bones and safety.Four types of massage head, according to the position of the massage to choose massage head, bring a more comprehensive massage experience.The device allows the user to directly target areas of pain and reduce pain while also reducing recovery time, making it an essential product for any athlete.Adjust the frequencies according to the purpose, for warming up, pain relief, injured muscles, muscle pain and activation, tightness relief; Increase to higher speeds for larger and stronger muscle groups.specifications:Power chargerRated input: 100 ~ 240V 50 / 60Hz 1ABattery ReviewedType: Li-ion capacity: 2400 mAhWorking hour: 2-6 hours massagerNo-load speed: 3200r / min3 level setting: level 1-1900 / min, level 2-2500 / min, level 3-3300r / minProduct size-18.8 cm * 24.2 cm * 6.2 cmNight weight: 1010gWith handle box Weight: 1700gPackage Details:1 * Massage Gun4 * massage head1 * EVA bag1 * power charger1 * user manual