1. The principle of voice control, can have a gentle effect on dogs; 2. Butterfly style stylish ultra-light shell, retractable neck strap, suitable for all breeds of dogs; 3. The product has power saving and automatic protection functions; 4. Low power consumption, only one 6V battery (included in the original packaging); 5. Export products, export quality; 6. Some dogs are only 7-14 days, and most dogs take 4-6 weeks to be effective. A few dog breeds take longer to be effective
