Casio Casiotone CT-S200 61-Key Portable Keyboard (Black)With the Casio Casiotone 61 Key Portable Keyboard, you can enjoy music whenever and wherever you like. Its compact size of 930 mm x 256 mm x 73 mm is 30% smaller in volume than the previous, models, and it boasts roughly 16 hours of alkaline battery life. With a grip at the top of the keyboard and a weight of only 3. 3 kg, it couldnt be easier to carry. The design incorporates rounded edges and corners, making it safely portable. Interface Easy To Use