Helps to stop manage and mitigate excessive barking problems caused by dogs - Prevents complaints from neighbors - Remotely controlled via radio frequency (RF) -- no line of sight required - 0.9" LCD display - Wireless control range about 300 meter radius (manufacturer rated) - 100 levels of bark control methods: vibrations mild and physically harmless static shock and noise to warn the dog - Collar powered by 2 x AAA batteries (included) - Remote controller powered by 2 * 4LR44 battery (included) - Package included: - 1 * Dog control receiver - 1 * Remote - 1 * Mounting band - 1 * Set of spare power head adapters - 1 * English user manual