Do you have a dog you want to train? If he barks too much and you want it to stop; this is the perfect product. It's a unique gadget that gives your pet a harmless static electricity shock. It works great and comes with a remote control capable of controlling three collars. The range is 1000 meters outdoors in an open area. The collar is weather and shock proof and is securely attached via the heavy duty clip. - 1.3" LCD display - Plastic casing - Transmission frequency: 433.92MHz - Remote control distance: 1000 meter - Can control up to 3 receivers - 1~100 level control with memory function - With vibration mode static shock mode & sound mode - Transmitter powered by 1 x 6F22 9V battery (included) - Receiver powered by 2 x AAA batteries (included) - Package includes: - 1 x Remote controller - 1 x Collar - 1 x Antenna - 4 x Static shock heads - 1 x Test bulb - 1 x English user manual