Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does the job, but speaker buttons are sticky

I needed something to allow me to use speakers both outdoors and in another room, and this little unit filled the bill perfectly. It's simple, direct, and does the job. My only complaint is the speaker selection buttons on the front. They're really sticky. They seem to be set up so that when one set of remote speakers is turned on, the other automatically turns off (i.e., when you push the A button, the B button automatically pops back out turning the B speakers off, and vice versa). Nice, but what if you want both sets of remote speakers on at the same time? Well, both remote speakers can be on at the same time when both buttons are pushed in simultaneously, but then you have to jiggle them all over the place to get the buttons to pop back out and turn the speakers off again. Probably a picky point, but it's annoying. If not for this, I'd give it 5 stars instead of 4.