Shenzhen XCHO Technology Limited, founded in 2015, is a professional manufacturer of innovative high-tech pet products, including pet water fountains, bark control collars, and retractable dog leashes. With strong R&D, award-winning design, and strict quality control, our products have achieved proven market success. Our retractable dog leash has ranked No. 1 on Amazon US for seven years, and our bark control collar remains among the Top 3. Worldwide supply.