Roll Piano (49 / 54 / 61 Keys)

1) compact size, can be rolled up and stored easily2) portable, easy to bring and play cheerfully everywhere3) with 4 sets of octachord (49 keys) , suitable for all kinds of music play4) equipped with 100 tones (00-99 tone control, uses function keys) 5) power saving design: 4 x no. 3 batteries can play for 5 hours6) 10 demonstration songs7) keyboard: 4 sets of octachord + 1 key (total 49 keys) 8) tone: 100 tones available (00-99, which can be selected by pressing 'up'And 'down' buttons) 9) power supply: 6v (single no. 3 batteries 1. 5v x 4) 10) output power: 500mwSpecification: - 49 standard keys- 100 timbres / 10 demonstration songs- vibrato effect- LED digital displays relate number- record / play- power supply: 4pcs AA batteries / AC adapter- external speaker / outer earphone / outer output- tone area: c2-c6- output power: 500mw- output voltage: 6vWeight: 0. 71kgSizes: A) principal part: 76 x 247 x 42mmB) keyboard: 722 x 172 x 4. 5mm