Ultrasonic Anti Barking-Anti-noise-Automatic Detection-Long Range-For Dog-Hanging on Wall, Tree, FenceUltrasonic Anti Barking*The ultrasonic anti-barking device can automatically detect dog barking within 15 meters. The bark control device automatically emits high-frequency ultrasound that only dogs can hear. When the dog stops barking, the ultrasonic bark control device will automatically stop emitting ultrasound.*Package includes:1 x Anti-barking device*Noticed :1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thanks for your understanding!2. Please allow 1-3mm measuring deviation due to manual measurement.+ product*Ultrasound is harmless to pets and completely inaudible to human ears, so the device is safe to use.*It can be hung on a tree, indoor or outdoor wall or fence to prevent the dog from barking (within the range). When excessive barking is detected, the microphone reacts to the bark and activates the component.*Suitable for dogs aged 6 months to 8 years.FeaturesDevice Description:*1. Material: ABS*2. Color: Black*3. Battery capacity: 400mAh*4. Size: 11*8.5*4.85cm/4.33*3.35*1.91in*5. Weight: 190g