Buyer may need exchange plug. Plug: TypeA Please check your country's plug. Buyer may need down transfomer to use our item, Because most of country's voltage is higher than 100V. [ Electronics ] Japan Voltage : 100V Please check your country's voltage before order. So items have only Japanese Manual & Menu Language. [ Country of Manufacture ] If "Made in Japan" is NOT described on whole listing page, Items are manufactured in other country (China, Vietnam and etc.). Needs no batteries. Elegant mahogany-brown clockwork metronome with a range of 40-208 crotchets-per-second. It is a convenient compact to make popular products to carry. Full-fledged clockwork metronome of height 15.5cm. [ Release Date(yyyy/mm/dd) ] For calm tone is friendly to the ear, not tired to hear for a long time practice, it is a popular metronome regardless of the instruments and playing styles.