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54 Keys,LED Display,100 Timbres / 100 Rhythms,8 Demonstration Songs / 8 Percussions,46-level Tempo Control / 16-grade Master Volume Control,16-grade Accom Volume Control
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6-20 characters(letters plus numbers only)
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Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
