The TASCAM MP-VT1 is perfect for music and vocal training. I've had it for over 10 years now... (^^；) It charges with an AC adapter, but it's finally showing its age and can't fully charge anymore. It works fine when plugged in... Unlike me, the exterior and display haven't aged a bit? They're still in great shape! It's been a fun trainer that I've used for more than just training. If you're interested, please check it out! ( ゜_ゝ゜ ) ★ The main unit's battery is weak ★ It works when plugged into the AC adapter ★ The display is still bright ★ The unit itself is honestly in great condition ★ Includes AC adapter and the main unit only #Tascam #TASCAM #MPVT1 - Model: MP-VT1 - Brand: TASCAM - Function: Music/Vocal Trainer - Display: LCD - Connections: Headphone jack - Control Buttons: Loop, Menu, Play Thank you for looking.