Seiko DM51 digital clip-on metronome, black.
The Seiko DM51 is a practical, digital, clip-on metronome that will help you keep time while you're practising. When you're not using the metronome, the handy clock function will let you know what time it is. The high-contrast LCD display is easy to read and flashing LED lights indicate the tempo which can be set between 30 and 250 beats per minute. The time signature can also be adjusted to 1/4, 2/4, 3/4, 4/4, 5/4, 6/4 and 7/4. The DM51 is extremely compact and weighs just 35 g, yet it produces a clear sound and even has an adjustable volume control.