TENTEN Battery Powered Dog Training Collar, Remote Control Pet Training Collar with LCD Display and 100 Level of Vibration and Static Shock, Battery Included (for 2 Dogs) Battery powered dog training collars, batteries of remote control and receiver all included in the package (You don't need to buy extra batteries) Range up to 330 yards remote control electric shock devices with 4 modes (Static Shock/ Vibration/ Beep/ Light) Choose from 1 to 100 adjustable levels shock and vibration by using Up/Down button, it is the perfect collar for your dog Durable and adjustable nylon strap which suit for pets of multiple sizes Convenient to train 2 dogs at the same time and easy-to-read LCD screen shows the stimulation, featured power saving design