Selling: A full-size Yamaha keyboard and arranger workstation with USB audio recording, 128-note polyphony, and playback of MP3 files.

Features:
Super articulation voices
Sounds from the legendary Tyros3
Microphone input with 3-part vocal harmony
MP3 playback
Color screen
128-note polyphony
16-track sequencer
Audio recorder
Internet direct connect and USB connectivity
Dozens of effects

Yamaha PSR-S910 61-KEY ARRANGER WORKSTATION Specifications:

Keyboard: 61-key, full-size with touch response (velocity sensitive)
Display: large 5.7" TFT color
Lyric/Text/ Score: Yes/Yes/Yes
Voices and compatibility: 1186 GM2/XG/GS compatible
Dual/split: yes - L1, R1, R2
Polyphony: 128 notes
One Touch/Reg.: 4 per style/8 pads x unlimited
Music database: 1550 preset (up to 2500)
Y.E.S./Lessons: no
Styles: 293 Pro + 29 Session + User
Style sections: 3 intro/endings + A-D + Fill x 4
MIDI: In/Out + USB slave
Storage device: USB device, 1.4MB flash
Effects: 42Rev/71Chor/DSP (271X1,130X3)
Harmony: 17 types
Multi pads: 4 x 95 Banks + User
In/Out jacks: phones, FS x 2, L/R Out+Fixed, MIC
Speakers: 12cm x 2/4cm x 2 (dome)
Amplifier: 12W + 12W
Power Supply: PA-300 (included)
Dimensions: 5.92" H x 39-1/2" W x 17.1" D
Weight: 25-1/2 lb.