This dog calming collar adopts advanced bionic pheromone technology and is specially designed to relieve dogs' anxiety and fear in various stressful environments. Whether it's thunderstorms, fireworks, noise, seeing a veterinarian, a long journey, or unease caused by separation or a new environment, it can help dogs quickly regain their calm and sense of security. The collar contains natural soothing pheromone components that simulate the secretion of female dogs. After wearing it, it is activated by body temperature and continuously releases a gentle and calming scent, creating a familiar and safe atmosphere. This psychologically soothes the dog's emotions, reducing negative behaviors such as anxiety, tension, excessive barking, destructive biting, and restlessness at night, keeping the pet in a peaceful and comfortable state. Each collar can continuously release calming factors for up to 60 days. The four-piece set is economical and practical, suitable for multi-dog families or long-term use. Continuous replacement can ensure a stable and long-lasting soothing effect. The product is made of safe and non-toxic TPE eco-friendly material, combined with natural plant essential oils. It has undergone multiple scientific tests, is gentle and non-irritating, does no harm to dogs' skin, and is also safe and harmless to the owner. The 25-inch adjustable length design can be flexibly cut according to the neck circumference of different dog breeds, providing a comfortable wearing experience without affecting daily activities. Whether it's a newly arrived puppy or an adult dog that tends to get nervous in certain situations, this calming collar can effectively help them relieve emotions and build a sense of security. It is an ideal choice for improving pet anxiety and promoting behavioral stability, allowing your beloved dog to live at ease and freely in any environment.