Maestro Metronome: Lightweight, flexible, professional electronic metronome, more accurate and convenient than mechanical metronome. Focus-- ads free, compact UI to avoid any interference which leads to the focus on the practice itself. Convenient-- Easy to navigate without long setup process. One button, "Tempo Preset" brings you to the preset practice tempo. Huge amount of time could be saved switching between multiple preset tempo during practice. Agile-- UI has flexibility to customize/hide display according customer need. Professional-- No fixed rhythm limitation, rhythm could be customized to accommodate different complicated need. Beginner could have a deeper understanding for the rhythm. "Rhythm Preset" can save all the rhythm you create for future use. Universality-- suitable for various musical instruments (piano, violin, guitar, saxophone, harmonica, ukulele, drums, etc.). Suitable for various music types (classical, rock, jazz, blues, etc.). It is even suitable for your use while running. Other: The most precise beat. It supports mute and vibration, works perfectly even in noisy environments. Support lock screen/background use. Maestro Metronome is designed for all music lovers. Product designers have more than 20 years of music learning experience, and truly comprehensive your needs in practice. Thank you very much for using our products, and welcome any feedback, your comments and suggestions can help us further improve the product which could help more music lovers. Email: "[email protected]"