The AP-620 features:-

 

88 Note Naturally Scaled Hammer Action Keyboard

Tri-Element Sound Source

Backlit LCD Screen

3 levels of Touch Response 

128-Note Polyphony 

14 Tones

20 Rhythms 

Layer 

Digital Effects

Metronome, 

Song Memory

64 Songbank Tunes

Key Transpose

Tuning Control

MIDI 

3 Pedals (Sostenuto, Soft and Damper) 

USB Port

SD Card Slot

Sliding Keyboard Cover