The repeller constantly changes its frequency, preventing vermin becoming resistant to the sound. Just plug into a socket and let the repeller work its magic.
4-Pack repeller pack provides complete home protection
Continuous output of over 100dB at swept frequencies too high for people, cats and dogs to hear
Welfare-friendly deterrent that does not harm rodents
CAUTION: Never use a Sonic Mouse & Rat Repeller in areas occupied by rodent pets such as gerbils, hamsters and guinea pigs