The main differences are the setting options. The Longevity Zapper has 3 different frequency settings, as well as 3 different voltage settings.
You may change the frequency of your Zapper to the following settings:
*Positive Offset Square Wave - 15 or 33Hz
*Negative Offset Square Wave - 15 or 33Hz
*Positive & Negative Offset Square Wave - 15 or 33Hz
You may change the voltage settings of your Zapper to 4, 8 or 12 Volts.
Further information on the frequency and voltage settings are included on the Longevity Zapper product page (linked below).
Click HERE to view the Longevity Zapper page.
The Longevity Zapper includes a belt clip, is rechargeable for up to approximately 800-1000 charge cycles (1-3 years of battery life), and also comes with a limited 1 Year Warranty.