You know that moment when you apply Frontline... and still find fleas 3 days later? That's because you're already too late. For every flea you SEE, 30 more are breeding in your couch. Chemicals only kill the 5% adults - not the eggs, larvae, or pupae. Our Dual-Spectrum Technology targets ALL life stages with precision frequencies (38-42 kHz) - eggs shrivel, larvae flee hiding spots, pupae starve in cocoons. That's why you'll see hundreds of dead fleas in week 1. It's not failing - it's working on the 95% you couldn't reach before.