1、The 49 ‑ key roll‑up key is the standard key, which can be rolled up, small in size and easy to carry. 2、Keyboard surface with functional hotkeys, easy to adjust their own favorite rhythm. 3、8 groups of drum rhythms, one key one tone, recording and playback function, 16‑level volume control, 32‑level beat control, automatic sleep power saving function. 4、There are 6 demo songs in it for you to learn and appreciate classic songs. 5、ABS material, soft and comfortable, good touch, suitable for people to learn music 1x Hand Rolling Piano 1x Connection Line1x Instruction Condition: 100% Brand NewItem Type: Hand Rolling Piano Material: ABSColour: As Pictures Shown Product Size: the Electric Piano Size: Control Box: Approx. 10x 22.2x 2.2cm/ 3.9x 8.7x 0.9in (LxWxH)Keyboard Size: Approx.73x 17.1x 0.3cm/ 28.7x 6.7x 0.1in (LxWxH)Weight: Approx. 901g/ 31.8ozTone:16Rhythm: 10Demo Song: 6 (To learn and appreciate classic songs)There is speaker tone is mellow and clear, melodious and pleasing to the earExternal earphone, external DC power supplyPower: AAx3/DC 6V Adapter