Feature: 1. It can be hung on a tree, wall or fence post to easily solve the barking of dogs and neighbors. 2. Frequency conversion, ultrasonic dog drive and cat drive, the default frequency of cats and dogs does not switch and is sensitive to sound wave adjustment 3. Neighbors avoid harassment, and people no longer worry about being quarreled by dogs and encountering danger. It can prevent angry dogs from chasing, biting, harassing and protecting personal safety 4. This product is suitable for windows, corridors, balconies, warehouses, factories, greenhouses, orchards, villas, farms, restaurants, shops, garages and other places. 5. Neighbors should not worry that dogs will encounter more danger to prevent vicious dogs from chasing, biting, harassing, and protecting personal safety 6. The waterproof bark device is suitable for outdoor and all-weather use. It uses ultrasound to stop excessive and noisy dog barking, which is more effective. 7. This device is rechargeable and can be used for 1 month. 8. Working principle This product can perform adjustable ultrasound and generate ultrasound, which can effectively stimulate the nerve and auditory system of stray dogs, squirrels, weasels, etc. Control range, causing discomfort and escape Specification: Material: ABS Packing: White box Size: length 96 width 33 height 55mm/3.78*1.3*2.17in Instruction: 1. This product uses a rechargeable lithium battery. When used for the first time, it will be fully charged before use. The USB cable can be connected to the charging port for charging. When the product is fully charged, the red light is on and the green light is on. 2. When the switch is pressed, the ultrasonic starts to work, and the indicator light is on at the same time. When the product effect is not ideal, the sound wave can be adjusted appropriately to achieve a more ideal driving effect. Note: 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. Thank you Please allow 1-3mm measuring deviation due to manual measurement. 1 X Ultrasonic Bark Stopper 1 x USB Cable