Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tivoli Model 3 Clock Radio

The Model 3 Clock Radio is flawed. Its sound quality though is excellent.The biggest problem for me is that the front and back panels are nearly unreadable under most ambient light conditions. The standard lettering and background colors combined with font size and the reflectance of the "metallic" treatment do not produce enough contrast to promote legibility. A flashlight (held at the right angle to avoid reflectance) is a useful tool for changing frequencies. My Tivoli Model 1 (classic/walnut), in contrast, is much much easier to use and sounds just as good.I agree with another reviewer that another problem with the Model 3 is that the clock is entirely dependent on batteries. It would be better for this AC radio to have an AC clock with a battery backup.