I purchased this in January 2022, but it ended up never being used, so I'm letting it go. It's being sold on Amazon for 1,500 yen. ＜Manufacturer's Description＞ KORG Metronome MA-2 BLBK Blue Black - Perfect for wind instruments, brass bands, orchestras, guitar, vocals, and a cappella - ideal for individual practice. 100 hours of continuous operation, lightweight, and compact. An essential tool for rhythm-keeping practice! A simple-to-use metronome. Ultra-compact design, weighing only 68g, making it easy to carry anywhere. Eco-friendly design, running for approximately 400 hours on two AAA batteries. Capable of playing at a high volume, ensuring the sound is not drowned out by loud instruments or high-pitched sounds. Equipped with a guide tone playback function for ear-based tuning. The compact card-type electronic metronome MA-1 has been further enhanced. The MA-2 is an indispensable tool for rhythm training, covering all the essential functions of a metronome. In addition to basic performance features such as a wide tempo range and a rich variety of beat/rhythm patterns, it incorporates user-friendly innovations in various aspects, including the beat display method, clear sound, and the newly added "Timer Mode." The body colors are available in two vivid and stylish color schemes: Blue & Black and Black & Red.