A: The V3 offers strong switch activation, State-of-the-art airflow, and 2g capability. The V4 is a newer era with much more precision and battery enhancements. Switch V4 is the last word Resolution for experts who expect the very best System to thrive. In no way overlook out on this https://boutiqswitchcarts05936.wikidank.com/1851418/boutique_switch_no_further_a_mystery