The casio ct s1 portable keyboard with bluetooth dongle is the perfect bundle for any keyboard player looking for portability and easy use. Powerful bass reflex speakers add new power to your bass notes for a resonant effect which is perfect combined with the redesigned casio aix sound source. Project the highest quality sound. Youll be proud of your stylish keyboard. The ct s1 keyboard has more design elements than youd usually find at this price point which you see with the speaker cloth and felt in the keys. Its uncluttered feel makes using its 61 fun voices a dream. You get to experiment with a whole range of modern and classic sounds including some sampling from special vintage instruments. This package includes the ct s1 and comes bundled with a casio wu bt10c5 bluetooth dongle opening up a world of new ways to use your keyboard! You can now connect to the powerful speakers with your phone or tablet via bluetooth and stream audio perfect playing along to your favourite songs. Using bluetooth you can also connect the ct s1 to the casio music space app and revolutionise your learning process!