Sell Global/ Skywing GL - 397/SW-399 APP 61 Key Electronic Keyboard w/ Stand best price

Global GL - 397 APP 61 Key Electronic Keyboard w/ X - Stand GL-397 APP Keyboard (without stand) 61 Piano keyboard with app teaching keyboard by multimedia intelligent indicator, built-in mp3 player & support USB external Bluetooth receiver. Catalog: *Each function LED digital display surface *function keys and external ports *mp3 and Bluetooth audio receiver playback operation *electronic piano performance and operation *power on and timbre selection *use o sound effects *rhythm and cord functions *continuous singing and smart keyboard flash learning function *working state memory storage *playing piano intelligent electronic organ app connection and instructions *pop piano intelligent electronic organ app connection and instructions *appendix i: unified table of timbre (005-154) *continued with table of timbre on previous page (155-310) *continued with table of timbre on previous page (311-459) *appendix ii: rhythms unification table (000-143) *table of rhymths (144-255) *appendix iii: a comparison table of the demonstration music *appendix iv: unified table of midi information *maintenance matters needing attendion