Best musical accessory for you: LCD Portable Lightweight Digital Beat Tempo Mini Metronome<br /><br /><br /><br />Specification:<br />Material: Plastic<br />Colour: Five colors<br />Size: 5.5x3x1cm (L*W*H)<br />Tempo: 30 to 280bpm<br />Beat Value: 0・ 1・ 2・ 3・ 4・ 5・ 6・ 7・ 8・ 9<br />Accuracy: +\/-0.001<br /><br />Features:<br />Light weight and high performance・ easy to fix・ professional<br />Simple operation・ portable・ stereo earphone jack is available<br /><br />Package Included:<br />1 x Mini Metronome(battery included)<br />1 x User Manual<br />1 x Stereo earphone jack