Upgraded BOOCOSA Best Wireless Dog Training Collar, Training Collars for Pet Obedience Train with Remote Visible Button &ndash; Easy to Use FOUR MODES AND SIXTEEN LEVELS - The BOOCOSA wireless dog training collar has 4 modes, light, beep, vibration and shock function. Vibration and Shock function have 16 correction levels, choose a most suitable one as you wish HUMANIZED DESIGN MAKES YOU FEEL MORE COMFORTABLE TO USE - There are separate buttons for beep, vibration and shock correction, all in 1-click handling, you need just use one hand to control it REMOTE SIGNAL TRANSMISSION TO GIVE YOUR DOG MORE FREEDOM - Ranges up to 330 yards between remote and collars, which means, you can control the collar as far as 330 yards away from your dog. Make your dog run in the garden and park freely MORE CHOICE TO GET WHAT YOU WANT MOST - With BOOCOSA shock collar, you can train 2 dogs with one remote. Please search Amazon Item ASIN #B01AVW7M9I to purchase dog collar at an affordable price, does not it attract you? BUY WITH CONFIDENCE - Our dog bark collars comes 30 days money back Guarantee and accessories replacement for free, rest assured to buy