Sad and very disappointed to say that the Catflap I bought in December does not live up to expectations: in fact, I am seriously thinking of taking the matter to Consumer Trading for misleading and frankly incorrect description. After having both my cats microchipped and correctly installing the flap and registering the cats, I find that the rogue neighbourhood cat (the reason why I upgraded the catflap in the first place) can easily open the flap from the outside with his claws! I rang your company about this and spoke to a very nice lady, who said, yes, such cats are known as "flap-lifters" and nothing can be done about this. In which case, your catflap is simply not fit for purpose, i.e. it does NOT keep unregistered cats out. Because of this, my cats can no longer use the catflap and I have to keep it permanently locked. What a shocking waste of money. The other annoying point is that, despite the advertising blurb saying that the batteries should last for about a year "with normal use", I found that the first (correct sort) batch lasted just under a month, and the second lot just over a month: as both cats refused to use the flap (on seeing the rogue cat coming and going freely) I hardly see this as "normal use" so changing the batteries is actually costing 12 times more a year. Again, misleading and incorrect information which really should be addressed on your literature. On the whole, a very expensive and unsatisfactory experience.