Features: Universal Mechanical Metronome: This universal mechanical metronome is suitable for most musical instruments, such as guitar, bass, piano, violin, drum, and more. Great Assistant for Musical Instrument Practice: Provides accurate rhythm and a clear, audible sound to help improve your sense of beat and tempo, ideal for beginners learning musical instruments. Easy to Use: Simply wind it up, select your desired beat (2/3/4/6/0) and tempo (40–208 bpm), remove the cover, and set the pendulum in motion. Adjust the speed by sliding the weight up or down the pendulum rod according to the meter plate. Eco-friendly Mechanical Energy: No batteries or external power required; powered by a manual winding mechanism to produce consistent metrical beats. Compact and Classic Design: Features a traditional pyramid shape with a durable ABS body and a transparent protective cover, making it portable and safe for transport. Specifications: Color: Black Material: ABS + Metal Beats: 2/3/4/6/0 Tempo: 40–208 bpm Item Size: 9.5 x 12 x 20.5 cm / 3.7 x 4.7 x 8.1 in Item Weight: 430 g / 15.2 oz Package Size: 24 x 12.5 x 11 cm / 9.4 x 4.9 x 4.3 in Package Weight: 545 g / 19.2 oz Note: Please pull out the brake on the bottom before using the metronome. Package List: 1 x Metronome 1 x User Manual