Before you hit "play" on that new file, keep these safety tips in mind:
While modern power boxes come with great presets, audio files offer several distinct advantages: E-stim Audio Files Download
Always turn the volume/intensity on your power box to zero before starting a new audio file. Every file is mastered at a different volume level; what is "low" on one track might be "max" on another. Before you hit "play" on that new file,
Never plug standard headphones into an E-stim box, and never plug E-stim electrodes directly into a phone’s headphone jack without a proper power box in between. Where to Find E-Stim Audio Files for Download E-stim Audio Files Download
The Ultimate Guide to E-Stim Audio Files: How They Work and Where to Download