Digital metronome, timer, tuner, clock, and bookmark-all in one! Pleasant tick-tock sound and flash indicators; plays either straight or accented beats and a full range of tempos; cumulative timer tracks multiple practice sessions; countdown timer lets you set your practice goal, then sounds the alarm when you're done. Also has a digital clock, A440 tuning note, and a handy clip on the back. Bookmark your music, clip it on your music stand, or clip it at your waist to time your morning exercise! Thin and only 5.5"!