Electronic Digital Metronome with Timer Universal Electronic Metronome with Volume and Beat Speed Control, Battery or USB Cable Powered, for Guitar Piano Violin Drum<br> The electronic metronome features digital display, beat speed control, volume control, battery or USB powered, non-slip bottom and more functions. It's a reliable practice partner for music lovers who play guitar, piano, drum, guzheng and more.<br> Features:<br> The electronic metronome provides beat type (0 to 9), beat speed control (40-208 beats/min), electronic and human voice, timer (15/ 30/ 45/ 60min).<br> Digital display for easy reading, clear at a glance. 3 AAA batteries (not included) or Type-C USB cable powered, more humanized.<br> Easy e via the control buttons and a large turntable; compact and lightweight, convenient to carry.<br> With earphone jack for silent use, not disturbing others; supports volume adjustment through the thumbwheel.<br> A reliable practice partner for music lovers who play guitar, piano, violin, drum, guzheng and more. Wonderful gift choice.<br> Note:<br> 1. Please remove the batteries if you want e USB cable to power it.<br> 2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.<br> Specifications:<br> Color: Black/ White/ Light Blue/ Light Purple (Optional)<br> Material: Plastic<br> Beat: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9<br> Tempo: 40-208 Beats/minute<br> Voice: Electronic Voice, Human Voice<br> Timer: 15min, 30min, 45min, 60min<br> Power Supply: 3 * AAA (not included) or Type-C USB Powered<br> Item Size: 140 * 70 * 45mm / 5.51 * 2.76 * 1.77in<br> Item Weight (without battery): 130g / 4.57oz<br> Package Size: 14.5 * 8 * 5cm / 5.71 * 3.15 * 1.97in<br> Package Weight: 175g / 6.17oz<br> Package List:<br> 1 * Electronic Metronome<br> 1 * USB Cable (Type-C)<br> 1 * User Manual (English)