Power on confirmed. Since I do not possess any discs, I have confirmed that the metronome click function works. This is an old item, and while there are scratches and stains, considering the age of manufacture, it is in relatively good condition without the common torn speaker grille found in such products. Please understand that this is a used item and purchase accordingly. Also, please understand that the functionality of all features has not been confirmed before purchasing. Furthermore, returns and exchanges are not possible to prevent product substitution, so please understand. YAMAHA / Made in Japan Features a built-in speaker and digital display. "MDP10 Music Data Player (Bansou-kun) - Production discontinued Enjoy lessons using song data (MIDI)! A player that can play song data (MIDI) on floppy disks. Plays data in various formats. Packed with useful features such as minus-one, repeat, and transposition. Product Information MDP10 Music Data Player (Bansou-kun) - Production discontinued Suggested retail price: 58,000 yen (excluding tax) Release date: August 1996 Color/Finish Equipped with convenient features for lessons, such as tempo adjustment. You can also enjoy karaoke by connecting a microphone. "Music Data Player (Bansou-kun)" *Quoted from the official website - Brand: YAMAHA - Model: - Functions: CD player, MD player, cassette deck - Color: Black - Display: Digital display - Speaker: Built-in speaker - Connection terminals: Headphone jack - Operation buttons: Multi-function buttons - Power supply: AC power