Features:_x000D_ _x000D_ Supports recording, programming, playback, tutorial, sustain and vibrato functions. _x000D_ 14 demo songs, 128 kinds of rhythms, 128 kinds of tones for easier practice. _x000D_ LED display shows the relevant parameter information clearly and intuitively. _x000D_ Built-in speaker and headphone jack for connecting earphone or external speaker. _x000D_ With USB MIDI output interfaces to support computer or tablet connecting. _x000D_ _x000D_ Specifications:_x000D_ Condition: 100% Brand New_x000D_ Color: Black + White_x000D_ Material: Silicon + Plastic_x000D_ Keyboard: 88 keys_x000D_ Tone: 128_x000D_ Rhythm: 128_x000D_ Demonstration songs: 14_x000D_ Power Supply: USB 5V Power Adapter(Not included)_x000D_ Battery: Built-in 1100mA Li-ion Battery_x000D_ Main body size: 23 x 9.5 x 2.5cm / 9.1 x 3.7 x 1in_x000D_ Keyboard size: 125 x 16 x 1cm/ 49.2 x 6.3 x 0.4in_x000D_ Total Length: Approx. 133cm / 52.4in_x000D_ Weight: Approx. 1725g_x000D_ _x000D_ Packing List: _x000D_ 1 x Rolling Up Piano_x000D_ 1 x Pedal_x000D_ 1 x USB Cable_x000D_ _x000D_ 1 x User Manual_x000D_ _x000D_ _x000D_ Note:_x000D_ Use the front keys to roll back along the control box, and use them after tapping the keyboard flat. 1Supports recording, programming, playback, tutorial, sustain and vibrato functions. 214 demo songs, 128 kinds of rhythms, 128 kinds of tones for easier practice. 3LED display shows the relevant parameter information clearly and intuitively. 4Built?in speaker and headphone jack for connecting earphone or external speaker. 5With USB MIDI output interfaces to support computer or tablet connecting.