love these fences great product works great..The cord is pretty long almost covered a quarter acre .. I would suggest getting extra you never know if your going to need it.We had a problem with aerating our lawn and the fence was breached they replaced the wires however with thicker wires now a 2 setting is not a 2 have to put it up another 2 digits.. so plan on that if you go with thicker wire.. The dial settings will need to be turned up..installing was really not hard.. We used a HOE and dug in at an angle and just lifted up chunk of the grass slipped wire in and then set it down.. No need to dig a trench and after we were done you didn't even hardly notice that the yard was dug up. our only down fall was we didn't dig deep enough in a few spots.. We did have teens helping LOL.. but honestly to save heaps of cash for professional installation i would recommend this to anyone.. We have a quarter acre took a couple hours.. with 4 people and well worth every penny.. !!iWe have stubborn beagles.. and when they see a rabbit they are gone! This fence keeps them in !The collars are great batteries last a long time.. couple months.. I dont suggest getting the wireless collars ones they dont last near as long. and are a bigger pain.. also wireless collars are a bit more bulky .Side note** if ever you get a break like we did .. ( had aeration done on yard had no idea we needed to tell them where the fence was ) But if you ever lose signal you can call a pro and they can fix and find whatever breaks easily for pretty reasonable considering what they would charge you if they did the initial installation.. Cost us $125 to fix 6 breaks in our line. Normally it would probably only be one or two breaks.. They charge per break.. so for a normal person that would be significantly cheaper.