Features: Experience the peace of a bark frees environment with our antibarking intelligent trainer, featuring cutting edges ultrasonic technology that is effective for all dog breeds and size. Crafted from abs materials, this wood grains antibark device boasts waterproof rating, making it perfects for both indoor and outdoor use, and comes equipped with a rechargeable 18650 battery (3.7v 1500mah). For pet owners seek a humaned solution to excessive barking, our intelligent trainer offer a user friendly approach to dog training with out causing any harm to your furry friend. Easily mountable on trees, wall, or fence posts, or simply placeing on tables or shelves, this ultrasonic bark deterrents ensures tranquility whether you're at homes or in the garden. Enhances your pet training toolkit with this innovative antibark device, which also features a recordables function, allowing you to personalize commands or calming sounds to further aid in behavior modification. Specifications: Component:ABS Diameter:Approx.10cm/3.93inch Built-in 18650 battery: 3.7V 1500mAh rechargeable, recording Package Includes: 1Set Dog Bark Deterrents Device note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. ②.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.