BGSL ADVANCED ANIMAL REPELLER WORKS ON BIRDS, FOXES, DOGS, CATS ETC, IT HAS UNIQUE STROBE LIGHTING AND SEND OUT BURST OF ULTRASONIC SOUND WAVES. IT COMES IN A PROTECTIVE CASE AND IS VERY EFFECTIVE Strobe lighting flash Repels all types of birds within a 70 square metre area.Motion sensor detects birds and automatically triggers ultra sonic sounds to repel birds away from protected area.PIR Angle: 110 degrees.Output sound: 110dbEffective day & nightEnviromentally friendly - no harm only repels with soundWeatherproof & UV resistantYou turn off strobe lighting The BGSL Advanced Animal Repeller is an effective way to help rid your garden of uninvited animal visitors. It combines a sophisticated PIR detection system that detects movement and triggers short bursts of powerful ultrasonic sound waves and flashing strobe lights that serve to help create an environment that the pests would rather not be in. Working in this way the bgsl Advanced Animal Repeller can help to deter squirrels, dogs, cats, foxes etc. Unlike many other garden pest repellers which rely solely on sound, this model also features super bright flashing strobe lights (that can be turned off) to act as an additional visual deterrent. In addition to the increased deterrent this provides in the garden, the strobe lights also make it ideal for repelling squirrels in a loft area. As the bgsl Advanced Animal Repeller is a battery operated unit, it is also great to use in the loft if you don't have access to a power point. Please note that all forms of pest control take variable amounts of time to be effective. This is because every pest infestation is unique due to environmental and geographical considerations. Pest repellers are no different in this regards and although most pest control issues are resolved quickly you may need to be patient. Features: Powerful ultrasonic speaker Super bright flashing strobe lights (with on/off option) Advanced PIR detection technology Weather resistant & maintenance-free On/off power switch For use both indoors and out Requires 2 x 9v alkaline batteries (Batteries not included).