Features: *Durable and Waterproof: The outdoor ultrasonic bark stopper is made of high-quality plastic, specially designed for outdoor use, durable and waterproof. *Two placement methods: This bark stopper is designed with hooks and can be hung or placed on the ground. *Dog Barking Control: Quiets dogs and stops excessively noisy barking by emitting ultrasonic waves, suitable for all breeds and all sizes of dogs. *Rechargeable: This bark stopper has a built-in large-capacity battery that can be recharged via USB, with low energy consumption and long standby time. *Long Range: Widely applicable to 50 feet range, suitable for outdoor and indoor use. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Plastic Size: 11.5*8.1*4.3CM Package List: 1 x Anti Barking Device