Features: Premium material: Made of premium quality material, comfortable for dogs to wear, without any pain. Adjustable sensitivity: Our bark collar can give different levels of training depending on the size and breed of the pet, and it is suitable for all sizes of dogs. Smart sensors: Our bark collar is equipped with smart sensors and chips, which can precisely identify your dog’s bark, making the activation more effective. Rechargeable collar: Our dog barking collar is rechargeable, can work for a long time after a full charge. IP65 waterproof: IP65 waterproof rated design for indoor and outdoor use in all weather conditions. Specifications: Color: black Waterproof rating: IP65 Package weight: 81g Package size: 8 * 7.5 * 4.5cm Package List: 1 * Dog Bark Collar 1 * Nylon Belt 1 * USB Charging Cable 1 * User Manual