Feature: 1. EFFECTIVE BARK CONTROL: Handheld anti barking dog device is designed to control unwanted barking and manage stray dogs. It emits a sound that quickly and effectively grabs the attention of any dog, helping to prevent undesirable behavior. 2. PORTABLE AND DURABLE: Handheld bark control device is lightweight and durable, making it easy to carry and use. It is built with a convenient flashlight, providing added functionality. 3. ULTRASOUND TECHNOLOGY: Using ultrasound technology, which can be adjusted between low decibel and high decibel options. It is safe for dogs and helps deter excessive barking without causing harm. 4. RECHARGEABLE: Anti barking device comes with a built in 280mAH lithium ion battery that is rechargeable using the included USB cable. The indicator light shows red when charging and turns blue when fully charged 5. VERSATILE USE: This device is suitable for both indoor and outdoor settings. It is perfect for controlling your own dog barking or deterring unwanted barking from neighbors' dogs. Specification: Item Type: Handheld Bark Control Device Built in Battery: 280mAH Lithium ion Applicability: Indoor Outdoor. Package List: 1 x Anti Barking Dog Device1 x Instruction Manual1 x USB Cable