Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DON'T waste your $$$$

I bought these but promptly returned them. They are underpowered, leaving lots of static and squeaks in the radio signal, even from 6 feet away. Also, the signal often drops out for no apparent reason and it may come back in "locked" on to your neighbor's headphone signal, a block away.Despite the high list price and fancy branding, these things are total junk. I suggest cheaper infared models if you want to avoid noise. If you need "through the walls" wireless, a cheap (...)set should perform better, since they usually do not include the "auto signal lock" feature that leads to losing the channel you're listening to. I suggest staying away from Acoustic Research, which is just an expensive brand for the cheap electronics manufacturer, Recoton. That said, Recoton at a low $20 price should be fine.