Over three years of collaboration with this Factory, we've witnessed firsthand how "details define quality." Starting with an initial order of 500pcs anti-lost devices, their QC team conducts rigorous 72-hour simulations for every batch, testing endurance in extreme temperatures, Bluetooth signal penetration through walls, and drop resistance. During last year’s peak season, when we urgently requested an additional 30,000 units, the factory reorganized production lines overnight and completed the first delivery within 72 hours, maintaining an impressively low defect rate of under 0.3%.

As a cross-border seller targeting European and American markets, we demand the highest standards in product compliance and user experience. Annie Factory’s customization capabilities exceeded our expectations, and secure CE, FCC, and RoHS certifications. During last year’s Black Friday, one of our customized model sold over 10,000 units monthly, with repeat orders arriving within 15 days—a supply chain speed rarely seen in the industry.

With rapid product turnover, we faced an urgent need during our spring collection: producing anti-lost devices for pets from prototyping to mass production within 20 days. This Factory’s project team demonstrated exceptional efficiency: they provided 3D samples with customized cartoon designs and IPX5 waterproofing within 48 hours, completed mold development in seven days, and delivered 12,000 units 15 days later—three days ahead of schedule. They even absorbed the emergency air freight costs, ensuring timely delivery to our American warehouse. This partnership solidified our trust; now, we enjoy a "7-day prototyping + 10-day delivery" express lane, giving us a two-week lead over competitors in market responsiveness.