Number of keys 61. Maximum number of simultaneous notes: 120. Connection: Headphone jack (stereo mini type, also used for audio output). Power consumption: 2.0W/5.3W (rated/max). Accessories: AC adapter KA350 (compatible voltage 100V240V). If you want more beauty items. Please check the shop as there are various other products. Go to our shop. We will carefully deliver using the packing material. Doing that is against U.