Need more than 1? Choose the number of sets in the dropdown to receive a bulk buy discount up to 20% off Features: 49 Keys Flexible Silicone Roll Up Piano: Learn an instrument that you can take with you anywhere. Multiple Functions: On its surface, there are rhythm, drum, sound effects, and chord learning function keys to facilitate the user to adjust the mode. 8 Drum Modes: With 16 levels of volume control, 32 levels of rhythm control in each mode and a power-saving sleep mode. 16 Sound Functions: 10 Point Rhythms Selection. Recording And Playback Functions. Built-in Speaker: Fully adjustable volume and lighting system. With a headphone jack (3.5 Millimeters) and a power connector. Portable: Easy to roll up for storage and carrying, you can play it anytime, anywhere. Suitable for Beginners or More Advanced Students: Specifications: instrument Type: Silicone Piano Keyboard Type: Children Learning and Exercising Material: Silicone, Plastic Size: 73 x 17.1 Centimeters Colour: Silver + Black Rated Voltage: Dc 4.5V or 3 x 1.5V AA battery (battery not included) Power Adapter: 4.5V, 0-1000Ma You will receive (per set): 1 x Roll Up Electronic Keyboard 1 x Charging Cable 1 x User Manual