Instruct: Classify Amazon reviews into positive or negative sentiment
Query: HDR 120

I like these headphones a lot, but they have a major bug. Range is great, they are very comfortable, sound quality is awesome, and you can fine tune the signal and volume on the headphones. If the signal strength gets too low, the headphones disconnect from the transmitter and broadcasts a ear-popping array of screetches, pops, and buzzes. This has nothing to do with distance from the transmitter, but rather the volume of the original source. I find that I have to turn up my TV or computer to a louder than normal level and turn down the volume on the headphones to avoid these nasty noises.For the price of the product, this issue is really not acceptable. I'm disappointed with Sennheiser for releasing a product with such a major flaw.