🐕This anti barking device for dogs indoor adopts ultrasonic anti-barking technology which is harmless to humans and dogs and a built-in ultrasonic sensor, automatically detecting barking and emitting ultrasonic waves, it can effectively train your dog to obey and prevent dog's bad behavior, such as excessive barking, digging, chasing, chewing or fighting.

🐾️Why choose this anti barking device❓
✔️ 4 ultrasonic transmitters is specifically designed to correct dog's bad behaviours
✔️ 3 advanced ultrasonic modes suitable for most breeds and sizes of dogs
✔️ Extremely long effective control range up to 33Ft
✔️ Built-in high capacity battery, can last 30 days of use
✔️ USB rechargeable, can be charged with adapters, power bank and laptops
✔️ IPX45 waterproof level, durable for indoor and outdoor use
✔️ Completely safe for both dogs and humans
✔️ Easy to operate and fix on everywhere(comes with screws and anchors)

💡Three Adjustable Frequency Modes
Audio Mode: 10-16KHz with bark alarm for small dogs indoor and outdoor use
Ultrasonic I Mode: 20KHz for docile dogs indoor use
Ultrasonic II Mode: 25KHz for large & naughty dogs outdoor use

🔔Note
1. Recommended for dogs 6 months to 8 years old without any hearing problems.
2. May not be effective on dogs with hearing problems or small dogs under 4.5lbs.
3. Please place the device where the dog barks most frequently and facing the dog.
4. Please change the ultrasonic frequency every 7 days for optimal anti-barking effect.
5. Not recommended for use on more than 2 dogs at the same time.