Homcolorful

{Dual Ultrasonic Frequencies}Homcolorful barking dog deterrent offers 2 ultrasonic modes, one with a frequency of 25kHz and another with a range of 25-30kHz. If your dog becomes accustomed to one frequency after prolonged use, consider switching to the alternative frequency. {Enhanced Triple Bark Repellent} Homcolorful dog barking silencer is equipped with 3 sonic emitters and an LED flashlight, providing a more powerful deterrent than a single emitter.This extended setup increases the control range from 16ft to 26ft, delivering superior results in discouraging excessive barking. {Versatile Training Options} Homcolorful dog bark deterrent devices provides 4 flexible training modes:sound,ultrasonic, ultrasonic & flashlight and LED flashlight mode.These options are designed to effectively address and correct a dog's aggressive behavior.