Features:  -61 standard accordion keys with One Mic.  -Portamenot, tremolo, single finger, fingered chords, insert, synchronization record. Rock.  -Suppports singing, Following, teaching.  -16 Tones, 10 kinds of Rhythms, 4 kinds of percussion&6 Demo songs.  -External Speaker/Learning function/ recording/ programming/ chord/ insertion/ volume/ beat speed/ microphone.     Specification:  Material: ABS;  Color: Black;  Plug: US/EU/USB;  Adapter: DC 6V (Included);  Battery: 4 x AA Batteries (Not Included);  Age: 1~8 years old;  Dimension: 50x14.5x4cm/19.7x5.7x1.6in.     Package Includes:  1 x 61 Keys Children's Electronic Piano Keyboard;  1 x USB Cable;  1 x Microphone;  1 x User Manual.     Note:  1. Please allow 0.5-1cm differences due to manual measurement.  2. Due to the light and screen difference, the item's color may be slightly different from the pictures.