Clip Tuner Set of 2 Brand new, unused. 440Hz Suitable for guitar, bass, violin, ukulele, etc. Batteries included, plus 2 extra, so you can rest assured even if the battery runs out suddenly. Effectively 850 yen if you consider buying from a 100-yen shop! Although unused, I will open the package once to test the operation with my own batteries before shipping, so please purchase with confidence. Please note that the item will be shipped in simple packaging to keep the price low. Also, the box will be disassembled and included in the package. Thank you for your understanding.