2017 NEW Upgraded 330 Yards Rechargeable Shock Training Collar with Remote, Electronic Dog Training Collar - All Size Dogs (10Lbs - 100Lbs) NEW DESIGN REMOTE CONTROL - Electronic Remote Training Collar with Blue Backlight Screen for dog with Beep Vibration and Shock Electronic, 100% tested product! Shock collar improve disobedient behavior- It Can be used to help correct Barking, Walking, Leash Training, Sitting, Aggression, and other Behavioral Obedience. Signal stability- Quickly synchronize the transmitter with collar receiver, within 10 seconds, Ingenious design over 3000 different identity codes that prevents conflict with other similar devices when no obstacles in between. All Size Dogs - Durable and adjustable (14 to 23 inches long) nylon strap able to fit small, medium, large dogs and puppies, From 15 to 100 lb,CE & RoHS approved. 300 yard range control- 330 yards remote range and 4 functional modes: vibration, light, beep and static shock, With 100 levels of vibration and static shock you will be able to find the right correction for your pet's personality and size.