Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unusable

You can only use this in front of the TV. Will not work through walls w/o annoying clicks & popping sounds and static. This replaced some wireless headphones that I wore right out. That were twice as good at half the price. I could walk around the whole house and hear them with no problems. I never thought I'd ashamed to buy an RCA product but I am now.