Features: Effective Bark Control: This barking collar utilizes advanced control technology to effectively reduce excessive barking, ensuring a peaceful environment for you and your pet. Rechargeable & Waterproof: Designed for durability, our rechargeable collar is waterproof, making it suitable for both indoor and outdoor use, even in rainy conditions or during playtime. Adjustable Fit For All Sizes: The adjustable shoulder strap ensures a comfortable fit for small, medium, and large dogs, providing effective barking deterrence without compromising comfort. Versatile Use: Ideal for various settings, this anti-barking collar can be used at home, in the garden, or while out on walks, helping to maintain control in any environment. Safe & Humane Training: The collar employs safe vibration and sound deterrents, promoting positive behavior without causing harm, making it a humane choice for dog training. Specification: Material: ABS, Nylon Power: 0.5W Working Voltage: 3.7V Inout Voltage: 5V Charging Time: 2 Hours Working Time: 20 Days Strap Circumference: 60cm Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Include: 1*Anti Barking Collar for Pet Dog 1*USB Cable 1*Instructions