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 - Wireless control range about 100 meter radius (manufacturer rated) - Multiple levels of bark control methods: vibrations mild and physically harmless static shock and noise to warn the dog - Remote controller features LED lights that acts as a flashlights while walking with your dog at night - Collar powered by 2 x AAA batteries (included) - Remote controller powered by a 23A battery (included) - Package included: - 1 * Dog control receiver - 1 * Remote - 1 * Mounting band - 3 * Mounting screws - 1 * Screw driver - 1 * English user manual