LINNIW Anti Barking Device for Dogs, Ultrasonic Dog Repeller 2-in-1 Handheld Bark Deterrent with LED Light, Indoor Outdoor Anti-Bark Small, Medium & Large Dogs

☀【Safe & Pet-Friendly Training Device】: This ultrasound device combines the most important functions of a training collar, whistle and clicker in a compact design. Thanks to the simple one-button operation, it corrects unwanted behavior such as barking, biting and digging using acoustic signals - without any physical contact. It contributes to a calmer environment for both dog and owner. ☀【3-level adjustable ultrasonic sound】: The ultrasonic dog trainer is a professional device for dog training and bark control. The safe sound waves in the frequency range from 25 kHz to 40 kHz are harmless to dogs. Not only can you use these safe frequencies to train your dog, but you can also increase the sound intensity to deter other dogs on walks. ☀【Fast Charge & Long Battery Life】: Equipped with a powerful battery and a USB-C charging port, the device is fully charged in just 2.5 hours and offers up to 30 days of use or up to 60 days of standby time. Ideal for travel and outdoor activities - you don't have to worry about the battery. ☀【LED flashlight】: The dog repellent has two lights (flashing light and steady light). The bright LED light ensures your safety at night. ☀【Portable, Compact & 15 Meter Range】: The ultrasonic dog repellent emits sound waves with a range of up to 15 meters, preventing dogs from barking. The device is compact enough to fit in your pocket and is suitable for both indoor and outdoor use.