This collar is designed with RF434Mhz technology, offering a range of up to 330 yards and can train up to two dogs at a time. Rugged and 100% rain resistant design allows your dog's collar and leash harness to stand up to rough outdoor play, rain or shine. 4 modes of operation: vibration, electric shock, beep, flashing lights. 100 available levels of static shock and vibration stimulation. Fits all dogs 15-100 lbs and collar sizes 7-26 inches. Package includes one remote transmitter and one collar. Receiver's backlit LCD screen and easy to press buttons allow easy usage, and power saving battery saves you the hassle of constantly charging your unit. Note: attach prongs to screws before usage with your dog. Every dog will react differently to our remote training collar. The collar may cause bed sores/necrosis if worn for too long or too tight.

• 4 modes of operation: vibration, electric shock, beep, flashing lights. 100 available levels of static shock and vibration stimulation. Fits all dogs 15-100 lbs and collar sizes 7-26 inches.
• Receiver's backlit LCD screen and easy to press buttons allow easy usage, and power saving battery saves you the hassle of constantly charging your unit.
• Rugged and 100% rain resistant design allows your dog's collar and leash harness to stand up to rough outdoor play, rain or shine.

4 modes of operation: vibration, electric shock, beep, flashing lights. 100 available levels of static shock and vibration stimulation. Fits all dogs 15-100 lbs and collar sizes 7-26 inches.Merske LLC