Electronic Digital Metronome with Timer, Universal Metronome with Volume and Beat Speed Control, Battery or USB Powered, for Guitar, Piano, Violin, Drum This electronic metronome features a digital display, adjustable beat speed, volume control, and can be powered by batteries or USB cable. It includes a non-slip bottom and is designed to support musicians during practice sessions. Suitable for guitar, piano, violin, drum, guzheng, and other instruments. Features: - Offers beat types (0 to 9), tempo control (40208 beats per minute), electronic and human voice options, and timer settings (15/30/45/60 minutes) - Clear digital display for easy reading - Powered by 3 AAA batteries (not included) or via Type-C USB cable - Compact, lightweight design with user-friendly control buttons and large dial - Equipped with headphone jack for silent practice and thumbwheel for volume adjustment - Ideal practice tool for musicians; makes a great gift Note: 1. Remove batteries when using USB power 2. Slight variations in size and color may occur due to manual measurement and lighting conditions Specifications: - Color: Black, White, Light Blue, Light Purple (available options) - Material: Plastic - Beat Options: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 - Tempo Range: 40208 beats per minute - Voice Options: Electronic Voice, Human Voice - Timer Settings: 15, 30, 45, 60 minutes - Power Supply: 3 x AAA batteries (not included) or Type-C USB - Device Size: 140 x 70 x 45mm / 5.51 x 2.76 x 1.77in - Device Weight (without battery): 130g / 4.57oz - Package Size: 14.5 x 8 x 5cm / 5.71 x 3.15 x 1.97in - Package Weight: 175g / 6.17oz Package Includes: 1 x Electronic Metronome 1 x Type-C USB Cable 1 x User Manual (in English)