Before using or charging the MuscleGun or Lithium-ion batteries, read all instructions and cautionary markings in the manual, on the charger, on the battery, and on the MuscleGun. New batteries must be charged before initial use.

  • The MuscleGun is intended for commercial or home use.
  • Do not place your finger or any objects near the metal piston above the attachment while the MuscleGun is in use or immediately after use.
    The motor can become extremely hot.
  • Do not use any Attachments or batteries other than the ones provided by MuscleGun and only as instructed by MuscleGun.
  • Avoid using MuscleGun above your Adam’s Apple or above C4 vertebrae, on your head, face, or near your genitals.
  • Do not get hair caught in the attachment arm or in any other moving part on the MuscleGun.
  • Do not use on open wounds or surgical incisions prior to stitches.
  • Do not get the MuscleGun wet other than by cleaning it with a magic eraser or a lightly damp towel.
  • Do not block the vents of the motor.
  • Do not reverse the polarity of the battery by inserting it upside down - only insert with the flat side facing the sliding button.
  • To extend the life of the battery, remove the battery from the charger once the light stops flashing.
  • If you are pregnant, please consult your physician before use.
  • This product is not meant to diagnose, treat, or prevent any disease.


  • Never attempt to disassemble the battery.
  • Never store a battery in direct sunlight or at temperatures above 104°F. (40°C).
  • Only charge the battery when the ambient temperature is between 32°F (0°C) and 104°F (40°C).
  • Never expose the battery or charger to water.
  • For long-term storage, the battery should be fully charged.
  • Do not leave the battery in the charger overnight.