TENTEN Dog Training Collar, Battery Powered AB 2 Level Remote Control Pet Training Collar Vibration Whistle Function Enhance Behavior: By sending a sound signal or vibration,this dog training collar is the best way to train your dog not to bark but to obey. Perfect for calling and training small and medium pets. Harmless and Effective: With vibration and sound signal functions. This collar can train your dog in an effective and easy way and doesn't cause any undue stress or harm to your pet. Working Range: The wireless remote control lets you send choose between two vibration intensities and a whistle tone within 150 yards. Easy to Operate: This collars are compact and easy to operate. It can control pet bad behaviors when taken outdoors for exercise. Low Battery Consumption: Led flash signal light. Battery powered training collars which are low battery consumption.