Music Mat Supplier in China Provides Musical Keyboard Playmat, 7 Built-in-demos, 6 Instruments, 4 Modes Selection, Foot Piano Mat.Product Specifications: Series: Instruments Name: Musical Keyboard Playmat Item SLW938 Mat Size: 120 x 46 cm Package Size: 47 x 7.5 x 33 cm Battery: 3 x 1.5V âAAâ (not included) Information: 4 modes to select: record mode, play back mode, DEMO mode, play mode 6 instruments to change tone 17 keys 7 Built-in-demos Adjustable volume Touch sensitive