SENWOW PTS-008 330 yd&nbsp;Waterproof&nbsp;Dog Training Collar with Remote Control 16 Levels of Static Shock & Vibration & Beep, Blue LCD Backlight, Batteries are included, Electric Collar for 1 Dog WaterproofRemote Dog Training Collar with Advanced RF 434Mhz Technology, boosts range up to 330 yards.Uses Regular AAA Batteries (batteries included)! No more buying expensive, specialty batteries for your training collar. Easy to set up, comes with an easy to read users manual. 3 modes: static shock, vibration, beep. 16 levels of static shock and vibration stimulation. The 16 levels setting is easir than the 100 levels. For example, if you want to the reach the 6 levels, the 100 levels product need to press 6 times, and the 16 levels product only need to press 1 time. Quickly synchronize the transmitter with collar receiver. Ingenious design over 3000 different identity codes that prevents conflict with other similar devices when no obstacles in between. Fits dogs from 15 to 100 lbs with the adjustable nylon collarfrom 7.87 to 27.5 inches. Convenience of operation, easy-to-read LCD screen shows the stimulation. Backlight LCD screen for easy low light condition viewing.