Noza Tec Upgraded Best Dog Training Shock Collar with Remote, Wireless Rainproof Electric Beep Vibration Shock Collars with 1-click Handling 16 Levels Shock & Vibration E Collar for Dogs EASY TO USE - Our professional grade water-resistant receiver and collar/transmitter fits all dogs. The ingenious design with improved microchip makes it super easy to operate and train any dog, small, medium, or large. The high quality and adjustable collar provides the perfect comfort fit for your pet. FOUR MODES AND SIXTEEN LEVELS - The 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 BUY WITH CONFIDENCE - Our dog bark collars comes 30 days money back Guarantee and lifetime warranty, rest assured to buy