China Rainbow Piano Mat Supplier Sunlin Offers Rainbow Piano Mat, 8 Keys, 8 Preprogrammed Tunes, 80 x 35 cm, Piano Mode and Demo Mode, Touch Sensitive. Product Specifications: Series: Instruments Name: Rainbow Piano Playmat Item SLW9381 Mat Size: 80 x 35 cm Package Size: 39 x 28 x5 cm Battery: 2 x 1.5V âAAâ (not included) Information: 2 modes to select: piano mode and Demo mode 8 keys 8 preprogrammed tunes Follow me memory game Touch sensitive playmat