Thank you for viewing! This is a retro and cute gadget. It's the "GCF1," a digital guitar chord library made by AKAI professional, released in the early 2000s. This keychain-sized device was easy to carry around and was a groundbreaking tool at the time, allowing users to instantly search and display over 500 different guitar chords. 【Features of this product】 ・Rare AKAI brand: This is one of the few pocket gadgets made by AKAI, a renowned name in musical instruments. ・Covers over 500 chords: Simply select the root note and chord type, and the fingering will be displayed on the LCD screen. ・Collectors item: Production has ended, and fully functional units are very difficult to obtain. 【Condition】 ・Operation confirmed: LCD display, buttons, etc., all function normally. ・New battery installed: A new coin battery (CR2032) has been replaced before listing. You can start using it right away. ・Appearance: There are minor scratches on the surface due to its age, but there is no liquid leakage or missing characters on the LCD screen, and it is in generally good condition. 【Shipping】 ※I will be out of town this weekend, so shipping will be on 【Monday】 of next week. I will carefully pack and ship the item to compensate for the delay, so thank you for your understanding. How about this for guitar beginners to practice with, or for AKAI fans and Y2K digital gadget enthusiasts? #AKAI #アカイ (Akai) #ギター (Guitar) #コードブック (Chord Book) #ギター初心者 (Guitar Beginner) #電子楽器 (Electronic Instrument) #ガジェット (Gadget) #Y2K #希少品 (Rare Item) #レトロガジェット (Retro Gadget) #GCF