Two dogs were extended training with the same transmitter 0 to 100 different levels of static electricity 0 to 100 different levels of vibration 1 different level of hiss Works up to 300 meters range Chargeable transmitter and receiver Easy to use and ergonomic transmitter (Length: 8 centimeter， width: 4 centimeter) Up / Down button allows 0 to 100 levels of gradual adjustment in stimulation

intensity Can remember the levels that suit your dog， do not have to adjust the intensity levels again next time. Digital remote control use different identity codes to prevent conflicts with other e-collars The necklace is a combination of micro static discharge， vibration， whistle and LED light Practical， ultra lightweight digital LCD remote signals to your dog to listen to their commands Safe， humane， robust and highly efficient for the education of your pet. (puppy or large dog， stubborn dog).