The unit keeps its promises. Although the exterior is certainly not to everyone's taste. A genuine chunk! In addition to the other reviews: you can certainly also provide infinitely quieter tone. But however unintentionally on, then flash the LEDs and still the vibrator buzzing - and you have to first on "hear"! I've done "quietly" a white marking on the volume knob at. The operation of the buttons could go a little easier, so you push the alarm clock when you operate the knobs off, if you do not take it in both hands. And instead of the FAST and SLOW FORWARD and REVERSE buttons would make more sense, then you need not always 24 rundrum back for a minute. Otherwise, strong unit, is fun - especially the first time around full speed, there comes guaranteed with every joy! :-)