Estim — 2b Audio Files
Never set your phone or PC volume above 85% when testing a new file. The Golden Rule: The 2B’s physical "Power" knobs are your safety net. Start with the 2B knobs at zero. Turn up your source volume (phone/PC) to 70-80%. Then slowly turn up the 2B knobs.
On a standard TENS unit, turning up the "Power" knob increases the voltage. On the 2B in Stereo Mode, your source volume (phone/PC) acts as a pre-amp . estim 2b audio files
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