1.Longlasting Rechargeable Dog Barking Deterrent Device:2 hours USB fast charging long lasting 90 days, battery capacity 800mAh Rechargeable Dog Anti Barking Unit. Whether you are training your dog indoors or outdoors, it can quickly, effectively and ly change every annoying, destructive or un bad behaviour of your dog in less than 3 seconds.It also supports 10S selfstop protection mode, which won't cause any harm to dogs or humans. (Tip: When you use it for the first time, please fully charge it in advance). 2.Multifunctional Design with LED Flashlight:Stop Dog Barking Device is equipped with a powerful LED flashlight which ensures visibility, during nighttime walks or outdoor activities with your dog to keep your surroundings well for convenience.PARTY FLASHLIGHTS can add more fun to your party. 3.Unique and Safty Design:Dog Control Device has three and effective modes: Stable Wave Ultrasonic Jump Wave Ultrasonic. Our dog barking deterrent device emits a fixed ultrasonic frequency of 25KHz. Ultrasonic dog bark deterrent can also emit a flexible ultrasonic frequency in the range of 15 40KHz, different frequencies have different effects on different dogs. 4. :We consider how to make the size of the product more for the average person to hold, and make the product look more in line with the user's temperament, refusing the embarrassing small size design that saves materials, It is a pocket size dog barking silencer, lightweight but compact, with a elegant design appearance. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store