LCD DISPLAY: The digital metronome is small and exquisite appearance, super bright backlight, LCD display, it can provide excellent visibility. TAP-FUNCTION: You can use the temp you have just tapped, test your ideal tempo or tempo of a track. Tempo: 30-280bpm. UNIVERSAL HEADPHONE JACK: The metronome is designed with 3.5mm channel headphone jack. Besides, you can easily change between TAP function and Metronome mode. ADJUSTABLE VOLUME CONTROL: Max/medium/min/mute. Multi-functional, can be used for all types of instruments. PORTABLE: The back of the digital metronome has the clip and the sling hole structure design, easy and convenient to carry and fix. Specifications: Condition: 100% New Material: Plastic Headphone Jack Diameter: Approx. 3.5mm/0.14in Weight: Approx. 30g Size: Approx. 6 * 3.5*1.5cm / 2.4 * 1.4*0.6in Color: Black Tempo: 30 to 280 BPM Beat Value: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Volume Adjustment: Maximum Volume; Medium Volume; Minimum Volume; Mute Accuracy: 1/1000 Power Supply: 1 * 3V CR2032 Cell Battery(Not included) Package list: 1 * Metronome 1 * User Manual