Material: Silicone rubber (keyboard); ABS plastic (control panel)</br>Full size 49 standard keys 4 octave + 1 key keyboard</br>On the surface of it?? there are rhythm?? drum?? sound effects?? chords and learning function keys for you to adjust the modes conveniently</br>Has 8 drum modes?? one key for one mode?? 16-level volume control?? 32-level rhythm control?? and power saving sleep mode.</br>Perfect for everyone from beginner to master?? children to adults - rock out then roll it up!</br></br>Product Description</br></br><b>Product description:</b><br>1. 49 keys soft keyboard.