88 keys portable keyboard piano, safeplus electric roll up flexible silicone piano keyboard for kids beginners adults gift support mp3 player bluetooth function safeplus <b> key features: </b><br>♫made of standard silicone rubber♫ <br>♫led digital display♫<br>♫master volume and speed control function♫<br>♫lithium battery and usb 5v power supply♫<br><br></br><b> specifications </b><br> color: white/black<br> material: silicon<br> keyboard model: 88 keys<br> tone: 128<br> rhythm: 128<br> demonstration songs: 15<br> <b>powered by: </b><br>1. usb 5v external power supply<br>2. built-in 1200 ma lithium battery<br> overall length of the product: 53.5"<br> keyboard dimension: 49.5" x 6.3" (l x w) <br> control box dimension: 7.5" x 4.5" x 2" (l x w x h) <br> net weight: 4 lbs<br><b> package includes:</b><br>1 x 88keys roll up piano<br>1 x power adapter<br>1 x foot pedal<br>1 x user manual</br>