88 Key Full-Weighted Digital Piano - The 88 key heavy hammer action keyboard simulates the acoustic piano, accurately captures the strength of your fingers and gives you a grand piano touch. It’s a good electronic piano to replace the grand piano for teaching or learning. Powerful Sound Source - The Advanced French DREAM sound source is adopted, bringing you a realistic auditory experience. 128 max polyphony and the triple pedal will help you express your feelings better. 2 Stereo Surround Speakers - 2x 25W(Maximum Power) speakers give better play to the perfect sound quality and have a stereo surround effect, and the headphone mode will help you practice without disturbing others. Fashion Appearance - Beautiful wood finish color, environmentally friendly and odorless process. DDP-80 piano is just like a simple piece of furniture, you can assemble it quickly and put it anywhere in your house. Powerful Function - DDP-80 has strong compatibility and can be connected to the teaching app on iPad and mobile phone for self-study, composition, or teaching. You can also connect the music editing software to the PC for internal records. Adapter Specifications - Input AC:100V-240V. Output DC:12 3A. Adapter Transformer DC: 5.5mm x 2.2mm.