Always play below the waist unless you know what you're doing and accept any risks.
Never use E-Stim around the neck or head.
Do Not use E-Stim if you are pregnant, have epilepsy, a heart condition, or any kind of electronic implant (e.g. pacemaker or insulin pump).
If you're unsure, consult your medical practitioner before using E-Stim.
Always start with the lowest setting and increase slowly.
Keep the electrodes away from broken or irritated skin.