Features: Made of good quality material, durable to play. Small and portable design, can be hand-carried. 128 rhythm options and 40 Demo songs. Volume adjustable and LED digital display. Built in speaker, also with speaker jack for connecting with external speaker. Descriptions: Keyboard: 61 keys Tone: 128 Rhythm: 128 Demonstration songs: 40 Rated voltage: DC 6V or 4 AA 1.5V batteries(not included) Specifications: Material: silicone Color: black and white Main body: 9.6 22.8 3.3cm Keyboard: 88 17.4 0.5cm Package included: 1 x 61keys Roll Up Piano 1 Power Adapter 1 User manual Notes 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Due to personal measurement technique is different, there may be 1-3 cm error of the physical.Thank you