Piano is flexible so when you're done playing, you can roll it back up into its box. Portable - take it with you anywhere, even when you go outdoors! Can be powered by batteries OR USB (cord included) so you can play anytime, anywhere! Features a unique Play-By-Color song booklet, multiple keyboard tones and demo songs, record and playback, echo/sustain, built-in speaker with volume control, and audio output. 49 standard keys allows you to play tons of music without taking up the space of a large piano or keyboard. Perfect for everyone from beginner to master, children to adults - rock out then roll it up! Rock out, then roll it up! Rainbow colored, flexible, completely portable piano by MukikiM with 49 standard keys. Features : - Play-By Color song booklet - Multiple Keyboard Tones - Multiple Demo Songs - Echo/Sustain - Record and Playback Built In Speaker w/auxiliary capabilities(headphones or external speaker) Powered by USB (cord included!) OR batteries Completely portable - take it with you and play ANYWHERE! Power saving mode activates when not in use Realistic Sounds Specifications: Keyboard Size (open): 27.75"x5"x.25" Control Panel Size: 3.25"x6"x1" Rolls up into a box sized: 6.25"x8.5"x3.25" Materials: Silicone, plastic Batteries: 4x AAA (not included) Package Includes: 1-Piano with attached control panel/speaker 1-41" USB power cord (wall plug not included) 1-User Manual 1-Song booklet Notes for usage: Due to the soft silicone that the keyboard is made of, there are times when compound sounds are produced due to cross-feedback or vibrations registering on adjacent keys. This is normal for such devices and is not indicate a faulty or malfunctioning product. Gender: unisex.