Anti dog barking device can automatically detect dog barking then emitting safe and harmless sonic sound to stop dogs from barking. Why choose our stop dog barking device- Safe and Humane: emit sonic sound to stop barking - 3 Adjustable Frequency: 20 22 24KHZ - Max Effective Range: up to 50 ft - IPX4 Waterproof Materials - Mini Design and Light Instructions: - Power On: adjust the knob to Level 1, 2 or 3 - Stand-by: blue light flashes every 6 seconds - Working: red light stays on for 8 seconds - Power Low: red light starts flashing 3 Modes Effective Range: - Mode 1 (Short distance): up to 15 ft - Mode 2 (Medium distance): up to 30 ft - Mode 3 (Long distance): up to 50 ft Packing List: 1 Anti Barking Device 1 USB cable 1 Lanyard 1 User Manual Notes: 1. The device detection range is 50ft 15.24m, but the best effect range is within 33ft 10m. The smaller the range, the better the effect. 2. The device is for dogs from 6 months to 8 years old dogs, not suitable for aggressive dogs or two or more barking dogs at the same time. 3. Don't put the device in heavy rain, water, or any other liquid. 4. Please change the sonic every 7-10 days as the dog may have resistance to the same sonic. 5. Please charge the device before daily use. Output current is no more than 2A.

Warm ReminderOur bark device may not works on all dogs. Dogs that are deaf will not be responsive to this device. Dogs that are hearing impaired may not be either. The behavior and tolerance of every dog is unique and each responds to varying levels and methods of correction differently. Please allow 2 weeks to use it to train your dog. Mini Design Waterproof Bark StopperThe dog silencer is small, light and made of IPX4 waterproof materials. You could take it anywhere, such as hung on a tree, wall or fence, keeping your own dog or your neighbors' dog from barking. Make sure the bark controller is facing the dog within effective range without any obstructions. Rechargeable Anti Barking DeviceThe anti barking device for dog built-in rechargeable lithium battery, the device can continuously work for 30 days after fully charged in 5 hours. Red Blue color indicates the state of the battery. You could charge the stop barking device by the USB port of the laptop or power bank. 3 Adjustable Levels of OperationThe dog barking deterrent with adjustable frequency is suitable for different sizes dogs. 20KHZ applies to the large, naughty dogs. 22KHZ applies to the docile dog. 24KHZ applies to small dogs. It's recommended for dogs aged from 6 months to 8 years old. Stop dog barking device can work effectively up to 50 ft. Safe Humane Dog TrainingOur dog bark device stops dog barking in a safe and gentle way. It uses safe way without any physical harm. Once he responds positively, praise him and reward him for improving his memory. Continuous training is needed to achieve effective and lasting results.