Feature: 1. Innovative Design: Unique rollable design, compact and lightweight, easy to store in a backpack or case, you can practice and play anytime, anywhere, whether at home, outdoors or travelling, you can carry it with you, which is greatly convenient for the user. 2. Clear Sound Texture: The built in speakers are clear and beautiful, giving you a real playing experience. The speaker sound is round and crisp, melodious and pleasant to the ear, making every performance full of musical charm and vitality, and making the performance even more enjoyable and touching. 3. DIY Songs: The keyboard surface is equipped with function hotkeys, making it easier to adjust your favourite tempo and create personalised musical compositions. External headphones and external DC power supply ensure stable power supply for the electronic keyboard and make it more suitable for long time use and playing. 4. Multifunctional: 49 keys for beginners to practice and entertain. Built in 16 tones, 10 rhythms. Built in 6 demonstration tunes to learn classic hits. 8 sets of drum rhythms, one key, one tone, recording, 16 levels of volume and 32 levels of beat control, automatic power saving sleep. 5. Material: Made of silicone and ABS material to ensure solidity and able to withstand long hours of use without worry. Users can choose to power it with 3 AA batteries or a DC 6V adapter, which is both convenient and flexible. Specification: Item Type: 49 Keys Rolling Piano Keyboard Material: ABS, Silicone Size: Approx. 83 x 22.5cm / 32.68 x 8.86in Battery: Approx. 1.5V AA x 3 (not included). Package List: 1 x 49 Keys Rolling Piano Keyboard 1 x Instruction Manual 1 x USB Cable