Instruct: Classify Amazon reviews into positive or negative sentiment
Query: collar lasted just over 1 year- recommend getting another model with a replaceable rechargable battery

My collar lasted just over 1 year- I recommend getting different model with a replaceable rechargable battery in the collar. Since I am just out of warranty, I will be charged for this replacement collar. Look at a different company please- and possibly find a local company that installs this system- it is A LOT OF WORK. My collar started sounding off & short circuiting, possibly shocking my dog for no reason. This unit has a DEFECTIVE collar, so please be careful with this package if you purchase it. I completely understand the out of warranty issue, but this is one horrible design flaw, and Innotek should not be allowed to get away with selling this product.