Anti Barking Device for Dogs, 4X Ultrasonic Dog Bark Deterrent Device

• Upgraded 4X Ultrasonic Transmitters: Four emitters deliver full 360° coverage to grab dogs’ attention and correct behavior instantly for better training efficiency. This anti-barking device activates automatically when barking is detected. It offers humane training, suitable for 99% hearing-healthy dogs aged 6 months to 8 years
• 3 Adjustable Frequencies: This dog barking silencer delivers 3‑frequency modes with a 33ft effective range for varied scenarios. Mode 1 (15‑30kHz, variable frequency) for large naughty dogs; Mode 2 (20kHz, fixed frequency) for docile dogs; Mode 3 (30kHz, fixed frequency) for small dogs. Fine‑tuned barking detection fits all dog sizes, working both indoors and outdoors
• Up To 33FT Range : with a 33ft effective range for indoor & outdoor use, this ultrasonic bark control box, indoor outdoor anti barking device for dogs works across yards, fences, and shared spaces, Whether it’s your backyard, patio, or the neighbor’s side, enjoy reliable protection from excessive barking day and night
• Anti Barking Device for Dogs: Tired of constant barking noise? Mount it on fences, walls, trees or place near kennels. This ultrasonic deterrent curbs unwanted dog barking for peaceful moments at home, yard or on walks. Safe, humane & shock‑free, it uses ultrasonic waves & sound cues to stop bad behavior without pain, stress or harm, as a safer alternative to shock collars and harsh training tools
• 2500mAh Large Battery & Fast Charging: With a powerful 2500mAh rechargeable battery. Fully charged in 4 hours, the device can continuously work for 30 days(in standby mode), but the actual working time is depend-ing on actual use. Works with adapters, power banks, laptops, or even car chargers, so you’ll never run out of options 

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