1. The stylish bow-tie-shaped design makes your dog look fashionable and cute when wearing it2. The built-in microphone picks up the barking sound and the dog collar is automatically activated3. The collar will emit a short warning tone at the first barking. If the second barking occurs within 30 seconds, a stronger tone will be emitted. From the third barking, a stronger tone will be emitted, accompanied by a short, mild electric shock4. This mode repeats through 7 correction levels and will pause for 1 minute. The sensitivity can be adjusted with the + and - buttons5. It is recommended to reprimand your dog when they bark along with the collar when you first put the collar on them so that they understand what is happening and you can get results faster Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.