Compact light-weight and ultra-portable * Offers great sound quality * 61 Keys, full size keyboard (4 Octaves+1 Key). Now, all the keys are even thickened for better durability and sense of playing * This standard electronic keyboard contains 61 keys from C2 to C7, 128 kinds of tone, 128 kinds of rhythm, 30 or 15 Bonding Option * Master volume control key, rhythm key, control key