Product Features: 1: Dog training and bark control dual functions, one-key switching of dog training and bark control function (3 seconds), operation practical 2: 1000 meters remote control distance, low price, high performance 3: the receiver is small and exquisite (45g), the product has electric shock, buzzer , vibration, flashlight, automatic bark control mode 4: One tow mode three: The remote control can control 3 receivers at the same time to train three dogs, the product is equipped with #39;a receiver, please contact customer service if you need more 5: 100 speed adjuster, which can adjust the static electricity and vibration of the receiver < p>6: IPX6 waterproof grade, large capacity lithium battery, receiver: 650mAh, transmitter: 300mAh Coding method: 1: press br ively on the receiver to power on, long press the power button for 3S, the red light flashes. 2: Within the effective range, press any key of the sound , vibration or electric shock of the transmitter to match the