Review on ANTEDEA Invisible Dog Fence: Advanced Bluetooth 2.4GHz Technology, 100% Waterproof & Rechargeable - 100 Adjustable Levels by Ivani Domenech

Unfortunately, after a long search, we cannot use these and cannot return them. LEAD YOUR RESEARCH FIRST! If you have a smaller yard, this can prevent your dog from getting into places they may need access to. For our bitch, this is the place where she can go to the toilet. Luckily we didn't open the inner packaging, only the box, however as the return period has expired by 1 week we cannot return these. I wish there was more installation information, videos, etc. to check before purchasing.