ISOTRONIC Ultrasonic Bird Repellent for Repelling Pigeons, Sparrows, Seagulls & Crows – Battery-Operated Bird Scarer for Balcony, Roof & Garden – Pigeon Repellent with a 40m² Effective Range (2 Units)

This arrived promptly, is well packaged and looks business like. I inserted the batteries and turned it on resulting in a red light flashing intermittently. No sound audible. I bought tree surgeons cord and weight to place the device as near to the new rooks nests that appeared in my garden in March. There has been no obvious effect at all and more rooks have taken up residence. This device doesn’t deter rooks or any of the other garden birds I see regularly. A waste of money!

Bought this product but was a bit sceptical. Mounted it on the wall and the pigeons did not like one bit. Long may it last.

My neighbour and I share two of these, and have had them on non-stop since purchase. We agree that they are neither use nor ornament. Pigeons sit more or less on top of them and gulls wander around at close range. Don't wast your money!

Worth a try for problem with pigeons But sadly didn't scare them away 😕

The instructions are very vague, once you switch them on there is no indication that they are working, there is no audible sound, so you switch them on the light lights and then goes out, after that????. Not happy at lack of help from instructions, for a supposedly German product it's quite suspect. Will give them a try or send back

I first bought a couple of these five years ago and they have been effective in deterring starlings from nesting in my attic. However, one of them stopped working for this season so I have bought two more. Hopefully they will be as effective!

Very good, certainly did what it states on the box!

RUBBISH - after carefully putting all the batteries in (correctly) the light went on but the product failed to work - the product is supposed to cycle on and off for about 5 -10 seconds in every 30 seconds but fails to make any vibration at all. Amazon would be well advised NEVER to have anything to do with this supplier who can't be bothered to check that their goods work before they distribute them out to Amazon customers - Your suppliers are a total waste of time and money!!!!!!!!! I will not use Amazon to purchase a product of this nature again!

Funkar inte alls!

Ich habe mir dieses Gerät gekauft, weil bei mir täglich Tauben den Gehweg verschmutzen. In der Beschreibung wird suggeriert, dass das Gerät Vögel zuverlässig vertreibt – das kann ich leider absolut nicht bestätigen. Trotz ordnungsgemäßer Platzierung und einwandfreier Funktion des Geräts bleiben die Tauben weiterhin in direkter Nähe sitzen. Ich habe ein Foto gemacht, auf dem klar zu sehen ist, wie eine Taube direkt neben dem Gerät sitzt – völlig unbeeindruckt. Für mich ist das Produkt damit komplett wirkungslos und erfüllt in keiner Weise seinen Zweck. Die Investition war umsonst und das Problem besteht unverändert weiter. Ich kann das Gerät leider nicht empfehlen

j'en ai installé 2 afin de les orienter et couvrir au mieux l'espace à protéger..les deux premiers jours étaient encourageants, plus de pigeons ni de pies...une fois l'effet de surprise passé c'est devenu d'une efficacité absolue.. la faible durée de l'émission de sons; 4 à 5 secondes ne dérangent en rien les visiteurs.

Would not recommend this as this never worked.

Het apparaat werkt niet; nog steeds blijven de vogels alles onderkakken! Echt waardeloos!