88 Key Electronic Roll Up Piano Silicone Keyboard

SpecificationBattery Operated,Charged for 1 hours can be used for 12 hoursMaterial: SiliconKeyboard model: 88 keysTone: 128Rhythm: 128Demonstration songs:15Powered by: 1.USB 5V external power supply2. Built-in 1200mA lithium batteryOverall length of the product: 53.5''Keyboard dimension: 49.5''x6.3'' (LxW)Control box dimension: 7.5''x4.5''x2'' (LxWxH) BrandCostwayManufacturer Part NumberTY576045WHGenderUnisexAssembled Product Weight4 lbColorWhiteManufacturerCostwayAssembled Product Dimensions (L x W x H)53.50 x 6.30 x 2.00 Inches