Pethin Dog Training Collar With Remote, 330 Yards E-collar Quickly synchronize the transmitter with collar receiver within 10 seconds - With 100 levels of vibration and 100 levels of static shock you will be able to find the right correction for your pet's personality and size. Fits dog sizes From 15 to 100 lbs with a supper quality nylon collar size from 14 to 23 inches long - Advanced RF 434Mhz Technology boosts range up to 330 yards. 4 functional modes, vibration, light, beep and static shock - Ingenious design that prevents conflict with other similar devices when no obstacles in between. Rechargeable remote control which gives professional level shock and vibration - A super easy to use and operate transmitter - Convenient, easy-to-read LCD screen display. Water-resistant collar receiver for light drizzles outside play (Removed before bathing or swimming) - Rechargeable batteries for the collar receivers.