This piano features 32 keys, 8 tones, 8 rhythms, and 22 demo songs. It includes a detachable microphone for simultaneous singing and playing. Powered by 4 AA batteries, it measures 15.7 x 6.1 x 1.2 inches for easy portability. The price drops from $24.99 to just $12.49 with code "NJ8VQIK8". Shipping is free for Prime members or on orders over $35.