Train your dog using the auto-bark or remote control functionalities. Activate the auto-bark mode to manage excessive barking when you are absent from your home, or deactivate it when you wish to maintain control over your dog in the park. This training device offers versatile modes such as a warning beep tone and vibration mode, along with 9 adjustable levels of static. It allows you to train either one or two dogs simultaneously using a single handset (refer to the available options). Similar to other products from Aetertek, the AT-918C is durable and user-friendly, ensuring a long-lasting and convenient experience. 1 Dog Option includes: 1 x Transmitter, 1 x Antenna, 1 x Receiver, 1 x Collar strap, 1 x Charger, 1 x Test bulb, 1 x Carrying case, 1 x User manual.