20 Gears LED Electric Percussion Massager Muscle Vibrating Pain Relaxing Therapy Device W 8 HeadsSpecifications Type LED displayColor Black Silver Red BluePower Charger Input 100 240V 50 60HzBattery Rated Voltage 7 4V DCBattery Rated Power 24WBattery Type Li ionBattery Capacity 4200mAh No load Speed 8000r minSize Approx 250x170x50mm 9 8x6 7x2inchFeatures With a new version of the LED screen display intuitive gear display left and right buttons to adjust the intensity The ergonomic grip can minimize the external force Vibration principle hammering style strong power to massage muscles 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 20 gear speed regulation to meet different massage needs Allowing you to focus on deep tissue work increased circulation or mobility Customized ergonomic massage head can provide comfortable massage experience while reducing the damage to bones and collaterals 8 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 recoverys time making it an essential product for any athlete Adjust the frequencies according to the purpose for warming up soreness relief injured muscles muscle pai