Brand New! Details [ DOG TRAINING & BARK CONTROL ] : The anti barking device uses the ultrasonic technology which is suitable for dogs of all breeds and all sizes. Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog barking. The anti barking device equipped with 3 ultrasonic levels. [ DURABLE & EASY CHARGING ] : High-performance lithium battery(2000mAh) allows you to avoid frequent charging concerns. It can work for 45 days after full 4 hours of charging, designed with a USB Type-C charging, makes it easier and convenient to charge, such as with power banks, computers etc. [ POWERFUL RANGE 50FT ] : This anti barking device comes with a well-designed shape. The range of ultrasonic penetration is 50ft, covering the area indoor and outdoor. Designed for easy hanging/mounting on a tree, wall or fence post to stop any dogs barking (within range). [ WEATHERPROOF ] : Our anti barking device is weatherproof and durable, it can withstand any weather conditions, making it also an excellent outdoor bark control device. Offers are welcome!