Just bought a bunch of these, so it's too soon to say how well they last. HOWEVER, the instructions don't tell you how to turn off that annoying hourly chime.To do so, hold down the "C" (left mouse ear) button and press the Mode button. When the lines under the days of the week blink out, that's when you've disabled the hourly chime.I'm not sure who thought that feature was a really swell idea, but they were wrong. Irritating!
Rating: [4 of 5 Stars!]